diff --git a/components/calendar/PreviewCard.vue b/components/calendar/PreviewCard.vue
new file mode 100644
index 0000000..fd16774
--- /dev/null
+++ b/components/calendar/PreviewCard.vue
@@ -0,0 +1,37 @@
+<script lang="ts" setup>
+import { PhCalendarDots, PhTrash } from "@phosphor-icons/vue";
+import type { Calendar } from "~/models/CalendarConfig";
+
+defineProps<{
+  calendar: Calendar
+}>()
+
+const emit = defineEmits(["on-delete"])
+</script>
+
+<template>
+  <UiCard
+    class="w-full h-full transition-all hover:bg-slate-50 dark:bg-gray-950 dark:hover:bg-indigo-950 dark:focus-within:outline-gray-900"
+    :link="`/my/calendars/${calendar.id}`"
+  >
+    <UiCardHeader>
+      <UiCardTitle class="text-xl pr-12">{{ calendar.name }}</UiCardTitle>
+    </UiCardHeader>
+
+    <UiCardContent>
+      <p class="flex items-center gap-1">
+        <PhCalendarDots size="24" />
+        <span>{{ $t("entity.calendar.hasXEvents", { count: calendar.eventNb?.[0].count }) }}</span>
+      </p>
+
+      <UiButton
+        size="icon"
+        variant="ghost"
+        class="absolute top-2 right-2 z-20 hover:text-white hover:bg-rose-400 dark:hover:bg-rose-700"
+        @click="emit('on-delete')"
+      >
+        <PhTrash size="16" />
+      </UiButton>
+    </UiCardContent>
+  </UiCard>
+</template>
diff --git a/components/global/AddCard.vue b/components/global/AddCard.vue
index d2d8955..7b716c0 100644
--- a/components/global/AddCard.vue
+++ b/components/global/AddCard.vue
@@ -6,7 +6,7 @@ const emit = defineEmits(["on-click"])
 
 <template>
   <UiCard
-    class="h-full w-fit transition-all bg-transparent dark:hover:bg-gray-950 dark:focus-within:outline-gray-900 hover:-translate-y-0"
+    class="h-full md:w-fit transition-all bg-transparent dark:hover:bg-gray-950 dark:focus-within:outline-gray-900 hover:-translate-y-0"
     has-click
     @on-click="emit('on-click')"
   >
diff --git a/components/ui/alert-dialog/AlertDialogContent.vue b/components/ui/alert-dialog/AlertDialogContent.vue
index 2695e23..776974c 100644
--- a/components/ui/alert-dialog/AlertDialogContent.vue
+++ b/components/ui/alert-dialog/AlertDialogContent.vue
@@ -31,7 +31,7 @@ const forwarded = useForwardPropsEmits(delegatedProps, emits)
       v-bind="forwarded"
       :class="
         cn(
-          'fixed left-1/2 top-1/2 z-50 grid w-full max-w-3xl -translate-x-1/2 -translate-y-1/2 gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg',
+          'fixed left-1/2 top-1/2 z-50 grid w-full max-w-3xl -translate-x-1/2 -translate-y-1/2 gap-4 border border-indigo-200 bg-background dark:bg-slate-950 dark:border-indigo-950 p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg',
           props.class,
         )
       "
diff --git a/components/ui/dialog/DialogContent.vue b/components/ui/dialog/DialogContent.vue
index 8792702..1501281 100644
--- a/components/ui/dialog/DialogContent.vue
+++ b/components/ui/dialog/DialogContent.vue
@@ -33,7 +33,7 @@ const forwarded = useForwardPropsEmits(delegatedProps, emits)
       v-bind="forwarded"
       :class="
         cn(
-          'fixed left-1/2 top-1/2 z-50 grid w-[calc(100%-2rem)] max-w-4xl -translate-x-1/2 -translate-y-1/2 gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg',
+          'fixed left-1/2 top-1/2 z-50 grid w-[calc(100%-2rem)] max-w-4xl -translate-x-1/2 -translate-y-1/2 gap-4 border bg-background border-indigo-200 dark:bg-slate-950 dark:border-indigo-950 p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg',
           props.class
         )
       "
diff --git a/components/ui/select/SelectTrigger.vue b/components/ui/select/SelectTrigger.vue
index 90c8e61..3bd70da 100644
--- a/components/ui/select/SelectTrigger.vue
+++ b/components/ui/select/SelectTrigger.vue
@@ -20,7 +20,7 @@ const forwardedProps = useForwardProps(delegatedProps)
     v-bind="forwardedProps"
     :class="
       cn(
-        'flex h-10 w-full items-center justify-between rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 [&>span]:line-clamp-1',
+        'flex h-10 w-full items-center justify-between rounded-md border border-input bg-background dark:bg-slate-950 contrast-more:dark:bg-slate-900 px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 [&>span]:line-clamp-1',
         props.class
       )
     "
diff --git a/components/world/PreviewCard.vue b/components/world/PreviewCard.vue
new file mode 100644
index 0000000..da860b2
--- /dev/null
+++ b/components/world/PreviewCard.vue
@@ -0,0 +1,73 @@
+<script lang="ts" setup>
+import { PhFilePlus, PhPencil, PhPencilSimpleLine, PhTrash } from "@phosphor-icons/vue";
+import type { World } from "~/models/World";
+import { DateTime } from "luxon";
+
+const props = defineProps<{
+  world: World
+}>();
+
+const emit = defineEmits(["on-edit", "on-delete"]);
+
+const { locale } = useI18n();
+const createdAt = DateTime.fromISO(props.world.createdAt!).toLocaleString(DateTime.DATETIME_MED, { locale: locale.value });
+const updatedAt = computed<string>(() => props.world.updatedAt ? DateTime.fromISO(props.world.updatedAt).toLocaleString(DateTime.DATETIME_MED, { locale: locale.value }) : "");
+</script>
+
+<template>
+  <UiCard
+    class="w-full h-full transition-all"
+    :link="`/my/worlds/${world.id}`"
+    :class="{
+      'hover:bg-slate-50 dark:hover:bg-sky-950 dark:focus-within:outline-sky-900': !world.color,
+      'bg-red-100 dark:bg-red-950 border-red-200 hover:bg-red-50 dark:hover:bg-red-900 dark:border-red-900 dark:focus-within:outline-red-900': world.color === 'red',
+      'bg-orange-100 dark:bg-orange-950 border-orange-200 hover:bg-orange-50 dark:hover:bg-orange-900 dark:border-orange-900 dark:focus-within:outline-orange-900': world.color === 'orange',
+      'bg-amber-100 dark:bg-amber-950 border-amber-200 hover:bg-amber-50 dark:hover:bg-amber-900 dark:border-amber-900 dark:focus-within:outline-amber-900': world.color === 'amber',
+      'bg-yellow-100 dark:bg-yellow-950 border-yellow-200 hover:bg-yellow-50 dark:hover:bg-yellow-900 dark:border-yellow-900 dark:focus-within:outline-yellow-900': world.color === 'yellow',
+      'bg-lime-100 dark:bg-lime-950 border-lime-200 hover:bg-lime-50 dark:hover:bg-lime-900 dark:border-lime-900 dark:focus-within:outline-lime-900': world.color === 'lime',
+      ' bg-green-100 dark:bg-green-950 border-green-200 hover:bg-green-50 dark:hover:bg-green-900 dark:border-green-900 dark:focus-within:outline-green-900': world.color === 'green',
+      'bg-emerald-100 dark:bg-emerald-950 border-emerald-200 hover:bg-emerald-50 dark:hover:bg-emerald-900 dark:border-emerald-900 dark:focus-within:outline-emerald-900': world.color === 'emerald',
+      'bg-teal-100 dark:bg-teal-950 border-teal-200 hover:bg-teal-50 dark:hover:bg-teal-900 dark:border-teal-900 dark:focus-within:outline-teal-900': world.color === 'teal',
+      'bg-cyan-100 dark:bg-cyan-950 border-cyan-200 hover:bg-cyan-50 dark:hover:bg-cyan-900 dark:border-cyan-900 dark:focus-within:outline-cyan-900': world.color === 'cyan',
+      'bg-sky-100 dark:bg-sky-950 border-sky-200 hover:bg-sky-50 dark:hover:bg-sky-900 dark:border-sky-900 dark:focus-within:outline-sky-900': world.color === 'sky',
+      'bg-blue-100 dark:bg-blue-950 border-blue-200 hover:bg-blue-50 dark:hover:bg-blue-900 dark:border-blue-900 dark:focus-within:outline-blue-900': world.color === 'blue',
+      'bg-indigo-100 dark:bg-indigo-950 border-indigo-200 hover:bg-indigo-50 dark:hover:bg-indigo-900 dark:border-indigo-900 dark:focus-within:outline-indigo-900': world.color === 'indigo',
+      'bg-violet-100 dark:bg-violet-950 border-violet-200 hover:bg-violet-50 dark:hover:bg-violet-900 dark:border-violet-900 dark:focus-within:outline-violet-900': world.color === 'violet',
+      'bg-purple-100 dark:bg-purple-950 border-purple-200 hover:bg-purple-50 dark:hover:bg-purple-900 dark:border-purple-900 dark:focus-within:outline-purple-900': world.color === 'purple',
+      'bg-fuchsia-100 dark:bg-fuchsia-950 border-fuchsia-200 hover:bg-fuchsia-50 dark:hover:bg-fuchsia-900 dark:border-fuchsia-900 dark:focus-within:outline-fuchsia-900': world.color === 'fuchsia',
+      'bg-pink-100 dark:bg-pink-950 border-pink-200 hover:bg-pink-50 dark:hover:bg-pink-900 dark:border-pink-900 dark:focus-within:outline-pink-900': world.color === 'pink',
+      'bg-pink-100 dark:bg-rose-950 border-rose-200 hover:bg-rose-50 dark:hover:bg-rose-900 dark:border-rose-900 dark:focus-within:outline-rose-900': world.color === 'rose',
+      'text-slate-100 bg-slate-900 border-slate-700 hover:bg-slate-700 dark:hover:bg-slate-800 dark:border-slate-900 dark:focus-within:outline-slate-900': world.color === 'black',
+      ' hover:bg-slate-50 dark:hover:text-slate-900 dark:hover:bg-slate-300 dark:border-slate-500 dark:focus-within:outline-slate-100': world.color === 'white',
+    }"
+  >
+    <UiCardHeader>
+      <UiCardTitle>{{ world.name }}</UiCardTitle>
+    </UiCardHeader>
+    <UiCardContent>
+      <p class="italic">{{ world.description }}</p>
+
+      <div class="flex gap-1 absolute top-4 right-4 z-20">
+        <UiButton size="icon" variant="ghost" class=" hover:text-white hover:bg-indigo-400 dark:hover:bg-indigo-700" @click="emit('on-edit')">
+          <PhPencil size="16" />
+        </UiButton>
+
+        <UiButton size="icon" variant="ghost" class=" hover:text-white hover:bg-rose-400 dark:hover:bg-rose-700" @click="emit('on-delete')">
+          <PhTrash size="16" />
+        </UiButton>
+      </div>
+    </UiCardContent>
+    <UiCardFooter>
+      <ul class="grid gap-2">
+        <li class="flex gap-1 items-center">
+          <PhFilePlus size="20" />
+          <span>{{ $t('common.createdAt', { createdAt }) }}</span>
+        </li>
+        <li v-if="updatedAt" class="flex gap-1 items-center">
+          <PhPencilSimpleLine size="20" />
+          <span>{{ $t('common.updatedAt', { updatedAt }) }}</span>
+        </li>
+      </ul>
+    </UiCardFooter>
+  </UiCard>
+</template>
diff --git a/i18n.config.ts b/i18n.config.ts
index 51e6b2e..e736aea 100644
--- a/i18n.config.ts
+++ b/i18n.config.ts
@@ -56,7 +56,9 @@ export default defineI18nConfig(() => ({
         displayMode: "Display mode"
       },
       common: {
-        title: "Title"
+        title: "Title",
+        createdAt: "Created {createdAt}",
+        updatedAt: "Last updated {updatedAt}",
       },
       entity: {
         category: {
@@ -81,6 +83,7 @@ export default defineI18nConfig(() => ({
           nameSingular: "World",
           namePlural: "Worlds",
           addSingle: "Add a world",
+          addSingleFirst: "Add your first world !",
           editSingle: "Edit world",
           notFound: "World not found",
           notFoundDescription: "The link is not valid or the world has been deleted / archived.",
@@ -110,12 +113,13 @@ export default defineI18nConfig(() => ({
           namePublicSingular: "Public Calendar",
           namePublicPlural: "Public Calendars",
           addSingle: "Add a calendar",
+          addSingleFirst: "Add your first calendar !",
           notFound: "Calendar not found",
           notFoundDescription: "The link is not valid or the calendar has been deleted / archived.",
           notFoundForWorld: "No calendar for this world… yet !",
           backToList: "Go back to calendars",
           isLoading: "Calendar is loading…",
-          hasXEvents: "This calendar has {count} public events",
+          hasXEvents: "{count} available events",
           date: {
             start: "Start date",
             end: "End date",
@@ -307,7 +311,9 @@ export default defineI18nConfig(() => ({
         displayMode: "Mode d'affichage",
       },
       common: {
-        title: "Titre"
+        title: "Titre",
+        createdAt: "Créé le {createdAt}",
+        updatedAt: "Dernière modification le {updatedAt}",
       },
       entity: {
         category: {
@@ -332,6 +338,7 @@ export default defineI18nConfig(() => ({
           nameSingular: "Monde",
           namePlural: "Mondes",
           addSingle: "Ajouter un monde",
+          addSingleFirst: "Ajouter votre premier monde !",
           editSingle: "Modifier le monde",
           notFound: "Aucun monde trouvé",
           notFoundDescription: "Le lien n'est pas valide ou le monde a été supprimé / archivé.",
@@ -356,17 +363,18 @@ export default defineI18nConfig(() => ({
           },
         },
         calendar: {
-          nameSingular: "Calendriers",
-          namePlural: "Calendrier",
+          nameSingular: "Calendrier",
+          namePlural: "Calendriers",
           namePublicSingular: "Calendrier Public",
           namePublicPlural: "Calendriers Publics",
           addSingle: "Ajouter un calendrier",
+          addSingleFirst: "Ajouter votre premier calendrier !",
           notFound: "Aucun calendrier trouvé",
           notFoundDescription: "Le lien n'est pas valide ou le calendrier a été supprimé / archivé.",
           notFoundForWorld: "Aucun calendrier pour ce monde… pour l'instant !",
           backToList: "Retourner aux calendriers",
           isLoading: "Chargement du calendrier…",
-          hasXEvents: "Ce calendrier contient {count} évènements publiques",
+          hasXEvents: "{count} évènements disponibles",
           date: {
             start: "Date de début",
             end: "Date de fin",
diff --git a/models/World.ts b/models/World.ts
index d57b624..613981b 100644
--- a/models/World.ts
+++ b/models/World.ts
@@ -8,10 +8,12 @@ export interface World {
   id?: number
   name: string
   description?: string
-  color?: RPGColor,
-  calendars?: Calendar[],
+  color?: RPGColor
+  calendars?: Calendar[]
   gmId?: string
   state?: WorldState
+  createdAt?: string
+  updatedAt?: string
 }
 
 export const postWorldSchema = z.object({
diff --git a/package.json b/package.json
index b79cb9f..c8093c3 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,7 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "lucide-vue-next": "^0.475.0",
+    "luxon": "^3.5.0",
     "nuxt": "^3.15.4",
     "pinia": "^3.0.1",
     "radix-vue": "^1.9.16",
@@ -40,6 +41,7 @@
     "@nuxtjs/supabase": "^1.4.6",
     "@nuxtjs/tailwindcss": "^6.13.1",
     "@stylistic/eslint-plugin-js": "^3.1.0",
+    "@types/luxon": "^3.4.2",
     "@typescript-eslint/eslint-plugin": "^8.25.0",
     "@typescript-eslint/parser": "^8.25.0",
     "eslint": "^9.21.0",
diff --git a/pages/explore.vue b/pages/explore.vue
index f298e4c..efe4759 100644
--- a/pages/explore.vue
+++ b/pages/explore.vue
@@ -1,4 +1,5 @@
 <script lang="ts" setup>
+import { PhCalendarDots } from "@phosphor-icons/vue";
 import type { Calendar } from "~/models/CalendarConfig";
 
 const { data: availableCalendars } = await useLazyFetch<{ data: Calendar[] }>("/api/calendars/query", { key: "explore-calendars" })
@@ -31,8 +32,9 @@ const { data: availableCalendars } = await useLazyFetch<{ data: Calendar[] }>("/
               </UiCardHeader>
 
               <UiCardContent>
-                <p>
-                  {{ $t("entity.calendar.hasXEvents", { count: calendar.eventNb?.[0].count }) }}
+                <p class="flex items-center gap-1">
+                  <PhCalendarDots size="24" />
+                  <span>{{ $t("entity.calendar.hasXEvents", { count: calendar.eventNb?.[0].count }) }}</span>
                 </p>
               </UiCardContent>
             </UiCard>
diff --git a/pages/my/index.vue b/pages/my/index.vue
index dcd64ce..0da0eab 100644
--- a/pages/my/index.vue
+++ b/pages/my/index.vue
@@ -1,17 +1,16 @@
 <script lang="ts" setup>
-import { PhPencil, PhTrash } from "@phosphor-icons/vue";
 import type { RealtimeChannel } from "@supabase/supabase-js"
 import type { World } from "~/models/World";
 
 const supabase = useSupabaseClient()
-
-const { data: worlds } = await useLazyFetch<{ data: World[] }>("/api/worlds/query")
+const user = useSupabaseUser()
 
 definePageMeta({
   middleware: ["auth-guard"]
 })
 
-const user = useSupabaseUser()
+const { data: worlds } = await useLazyFetch<{ data: World[] }>("/api/worlds/query", { query: { gmId:  user?.value!.id } })
+const sortedWorlds = computed(() => worlds.value?.data ? [...worlds.value.data].sort((a, b) => (a.id ?? 0) - (b.id ?? 0)) : [])
 
 // Redirect user back home when they log out on the page
 watch(user, (n) => {
@@ -48,7 +47,7 @@ function handleDeletedWorld(id: number) {
   if (!worlds.value?.data) return
 
   try {
-    worlds.value.data.splice(worlds.value.data.findIndex(w => w.id === id))
+    worlds.value.data.splice(worlds.value.data.findIndex(w => w.id === id), 1)
   } catch (err) {
     console.log(err)
   }
@@ -72,7 +71,7 @@ onMounted(() => {
           case "UPDATE":
             if (!worlds.value?.data) return
 
-            worlds.value.data = (await $fetch("/api/worlds/query")).data as World[]
+            worlds.value.data = (await $fetch("/api/worlds/query", { query: { gmId:  user?.value!.id } })).data as World[]
             break
 
           default:
@@ -132,54 +131,17 @@ function hideEditModal() {
         </div>
 
         <ul v-if="worlds?.data" class="grid lg:grid-cols-3 gap-2">
-          <li v-for="world in worlds.data" :key="world.id">
-            <UiCard
-              class="w-full transition-all"
-              :link="`/my/worlds/${world.id}`"
-              :class="{
-                'hover:bg-slate-50 dark:hover:bg-sky-950 dark:focus-within:outline-sky-900': !world.color,
-                'bg-red-100 dark:bg-red-950 border-red-200 hover:bg-red-50 dark:hover:bg-red-900 dark:border-red-900 dark:focus-within:outline-red-900': world.color === 'red',
-                'bg-orange-100 dark:bg-orange-950 border-orange-200 hover:bg-orange-50 dark:hover:bg-orange-900 dark:border-orange-900 dark:focus-within:outline-orange-900': world.color === 'orange',
-                'bg-amber-100 dark:bg-amber-950 border-amber-200 hover:bg-amber-50 dark:hover:bg-amber-900 dark:border-amber-900 dark:focus-within:outline-amber-900': world.color === 'amber',
-                'bg-yellow-100 dark:bg-yellow-950 border-yellow-200 hover:bg-yellow-50 dark:hover:bg-yellow-900 dark:border-yellow-900 dark:focus-within:outline-yellow-900': world.color === 'yellow',
-                'bg-lime-100 dark:bg-lime-950 border-lime-200 hover:bg-lime-50 dark:hover:bg-lime-900 dark:border-lime-900 dark:focus-within:outline-lime-900': world.color === 'lime',
-                ' bg-green-100 dark:bg-green-950 border-green-200 hover:bg-green-50 dark:hover:bg-green-900 dark:border-green-900 dark:focus-within:outline-green-900': world.color === 'green',
-                'bg-emerald-100 dark:bg-emerald-950 border-emerald-200 hover:bg-emerald-50 dark:hover:bg-emerald-900 dark:border-emerald-900 dark:focus-within:outline-emerald-900': world.color === 'emerald',
-                'bg-teal-100 dark:bg-teal-950 border-teal-200 hover:bg-teal-50 dark:hover:bg-teal-900 dark:border-teal-900 dark:focus-within:outline-teal-900': world.color === 'teal',
-                'bg-cyan-100 dark:bg-cyan-950 border-cyan-200 hover:bg-cyan-50 dark:hover:bg-cyan-900 dark:border-cyan-900 dark:focus-within:outline-cyan-900': world.color === 'cyan',
-                'bg-sky-100 dark:bg-sky-950 border-sky-200 hover:bg-sky-50 dark:hover:bg-sky-900 dark:border-sky-900 dark:focus-within:outline-sky-900': world.color === 'sky',
-                'bg-blue-100 dark:bg-blue-950 border-blue-200 hover:bg-blue-50 dark:hover:bg-blue-900 dark:border-blue-900 dark:focus-within:outline-blue-900': world.color === 'blue',
-                'bg-indigo-100 dark:bg-indigo-950 border-indigo-200 hover:bg-indigo-50 dark:hover:bg-indigo-900 dark:border-indigo-900 dark:focus-within:outline-indigo-900': world.color === 'indigo',
-                'bg-violet-100 dark:bg-violet-950 border-violet-200 hover:bg-violet-50 dark:hover:bg-violet-900 dark:border-violet-900 dark:focus-within:outline-violet-900': world.color === 'violet',
-                'bg-purple-100 dark:bg-purple-950 border-purple-200 hover:bg-purple-50 dark:hover:bg-purple-900 dark:border-purple-900 dark:focus-within:outline-purple-900': world.color === 'purple',
-                'bg-fuchsia-100 dark:bg-fuchsia-950 border-fuchsia-200 hover:bg-fuchsia-50 dark:hover:bg-fuchsia-900 dark:border-fuchsia-900 dark:focus-within:outline-fuchsia-900': world.color === 'fuchsia',
-                'bg-pink-100 dark:bg-pink-950 border-pink-200 hover:bg-pink-50 dark:hover:bg-pink-900 dark:border-pink-900 dark:focus-within:outline-pink-900': world.color === 'pink',
-                'bg-pink-100 dark:bg-rose-950 border-rose-200 hover:bg-rose-50 dark:hover:bg-rose-900 dark:border-rose-900 dark:focus-within:outline-rose-900': world.color === 'rose',
-                'text-slate-100 bg-slate-900 border-slate-700 hover:bg-slate-700 dark:hover:bg-slate-800 dark:border-slate-900 dark:focus-within:outline-slate-900': world.color === 'black',
-                ' hover:bg-slate-50 dark:hover:text-slate-900 dark:hover:bg-slate-300 dark:border-slate-500 dark:focus-within:outline-slate-100': world.color === 'white',
-              }"
-            >
-              <UiCardHeader>
-                <UiCardTitle>{{ world.name }}</UiCardTitle>
-              </UiCardHeader>
-              <UiCardContent>
-                <p class="italic">{{ world.description }}</p>
-
-                <div class="flex gap-1 absolute top-4 right-4 z-20">
-                  <UiButton size="icon" variant="ghost" class=" hover:text-white hover:bg-indigo-400 dark:hover:bg-indigo-700" @click="deployEditModal(world)">
-                    <PhPencil size="16" />
-                  </UiButton>
-
-                  <UiButton size="icon" variant="ghost" class=" hover:text-white hover:bg-rose-400 dark:hover:bg-rose-700" @click="deployDeleteModal(world)">
-                    <PhTrash size="16" />
-                  </UiButton>
-                </div>
-              </UiCardContent>
-            </UiCard>
+          <li v-for="world in sortedWorlds" :key="world.id">
+            <WorldPreviewCard :world="world" @on-edit="() => deployEditModal(world)" @on-delete="() => deployDeleteModal(world)" />
           </li>
-          <li class="w-fit">
+          <li class="md:w-fit">
             <AddCard @on-click="() => isCreateWorldModalOpen = true">
-              {{ $t('entity.world.addSingle') }}
+              <template v-if="worlds?.data?.length > 0">
+                {{ $t('entity.world.addSingle') }}
+              </template>
+              <template v-else>
+                {{ $t('entity.world.addSingleFirst') }}
+              </template>
             </AddCard>
           </li>
         </ul>
diff --git a/pages/my/worlds/[id].vue b/pages/my/worlds/[id].vue
index df4f667..727d9e8 100644
--- a/pages/my/worlds/[id].vue
+++ b/pages/my/worlds/[id].vue
@@ -2,13 +2,14 @@
 import type { RealtimeChannel } from "@supabase/supabase-js"
 import type { World } from "~/models/World";
 import type { Calendar } from "~/models/CalendarConfig";
-import { PhArrowBendDoubleUpLeft, PhGlobeHemisphereWest, PhPencil, PhTrash } from "@phosphor-icons/vue";
+import { PhArrowBendDoubleUpLeft, PhGlobeHemisphereWest, PhPencil } from "@phosphor-icons/vue";
 
 const supabase = useSupabaseClient()
 const route = useRoute()
 const id = route.params.id
 
 const { data: world, status } = await useFetch<{ data: World }>("/api/worlds/query", { query: { id, full: true } })
+const sortedCalendars = computed(() => world.value?.data.calendars ? [...world.value.data.calendars].sort((a, b) => (a.id ?? 0) - (b.id ?? 0)) : [])
 
 definePageMeta({
   middleware: ["auth-guard"]
@@ -54,7 +55,7 @@ function handleDeletedCalendar(id: number) {
   if (!world.value) return
 
   try {
-    world.value.data.calendars?.splice(world.value.data.calendars.findIndex(c => c.id === id))
+    world.value.data.calendars?.splice(world.value.data.calendars.findIndex(c => c.id === id), 1)
   } catch (err) {
     console.log(err)
   }
@@ -187,36 +188,22 @@ function hideEditModal() {
             </Heading>
           </div>
 
-          <ul v-if="world.data.calendars && world.data.calendars?.length > 0" class="grid md:grid-cols-3 gap-2">
-            <li v-for="calendar in world.data.calendars" :key="calendar.id">
-              <UiCard
-                class="w-full transition-all hover:bg-slate-50 dark:bg-gray-950 dark:hover:bg-indigo-950 dark:focus-within:outline-gray-900"
-                :link="`/my/calendars/${calendar.id}`"
-              >
-                <UiCardHeader>
-                  <UiCardTitle class="text-xl pr-12">{{ calendar.name }}</UiCardTitle>
-                </UiCardHeader>
-
-                <UiCardContent>
-                  <p class="italic">Description future (ou alors des informations sur le nb d'évènements)</p>
-
-                  <UiButton size="icon" variant="ghost" class="absolute top-2 right-2 z-20 hover:text-white hover:bg-rose-400 dark:hover:bg-rose-700" @click="deployDeleteCalendarModal(calendar)">
-                    <PhTrash size="16" />
-                  </UiButton>
-                </UiCardContent>
-              </UiCard>
+          <ul class="grid md:grid-cols-3 gap-2">
+            <li v-for="calendar in sortedCalendars" :key="calendar.id">
+              <CalendarPreviewCard :calendar="calendar" @on-delete="() => deployDeleteCalendarModal(calendar)" />
             </li>
-            <li class="w-fit">
+
+            <li class="md:w-fit">
               <AddCard @on-click="() => isCreateCalendarModalOpen = true">
-                {{ $t('entity.calendar.addSingle') }}
+                <template v-if="sortedCalendars.length > 0">
+                  {{ $t('entity.calendar.addSingle') }}
+                </template>
+                <template v-else>
+                  {{ $t('entity.calendar.addSingleFirst') }}
+                </template>
               </AddCard>
             </li>
           </ul>
-          <template v-else>
-            <p class="pl-6 opacity-75 italic">
-              {{ $t('entity.calendar.notFoundForWorld') }}
-            </p>
-          </template>
         </Spacing>
       </section>
 
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f1ae76f..f0e2488 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -41,6 +41,9 @@ importers:
       lucide-vue-next:
         specifier: ^0.475.0
         version: 0.475.0(vue@3.5.13(typescript@5.7.3))
+      luxon:
+        specifier: ^3.5.0
+        version: 3.5.0
       nuxt:
         specifier: ^3.15.4
         version: 3.15.4(@parcel/watcher@2.5.1)(@types/node@22.13.5)(db0@0.2.4)(encoding@0.1.13)(eslint@9.21.0(jiti@2.4.2))(ioredis@5.5.0)(magicast@0.3.5)(optionator@0.9.4)(rollup@4.34.8)(sass@1.85.1)(terser@5.39.0)(typescript@5.7.3)(vite@6.2.0(@types/node@22.13.5)(jiti@2.4.2)(sass@1.85.1)(terser@5.39.0)(yaml@2.7.0))(yaml@2.7.0)
@@ -84,6 +87,9 @@ importers:
       '@stylistic/eslint-plugin-js':
         specifier: ^3.1.0
         version: 3.1.0(eslint@9.21.0(jiti@2.4.2))
+      '@types/luxon':
+        specifier: ^3.4.2
+        version: 3.4.2
       '@typescript-eslint/eslint-plugin':
         specifier: ^8.25.0
         version: 8.25.0(@typescript-eslint/parser@8.25.0(eslint@9.21.0(jiti@2.4.2))(typescript@5.7.3))(eslint@9.21.0(jiti@2.4.2))(typescript@5.7.3)
@@ -1632,6 +1638,9 @@ packages:
   '@types/json-schema@7.0.15':
     resolution: {integrity: sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==}
 
+  '@types/luxon@3.4.2':
+    resolution: {integrity: sha512-TifLZlFudklWlMBfhubvgqTXRzLDI5pCbGa4P8a3wPyUQSW+1xQ5eDsreP9DWHX3tjq1ke96uYG/nwundroWcA==}
+
   '@types/node@22.13.5':
     resolution: {integrity: sha512-+lTU0PxZXn0Dr1NBtC7Y8cR21AJr87dLLU953CWA6pMxxv/UDc7jYAY90upcrie1nRcD6XNG5HOYEDtgW5TxAg==}
 
@@ -3411,6 +3420,10 @@ packages:
     peerDependencies:
       vue: '>=3.0.1'
 
+  luxon@3.5.0:
+    resolution: {integrity: sha512-rh+Zjr6DNfUYR3bPwJEnuwDdqMbxZW7LOQfUN4B54+Cl+0o5zaU9RJ6bcidfDtC1cWCZXQ+nvX8bf6bAji37QQ==}
+    engines: {node: '>=12'}
+
   magic-string-ast@0.7.0:
     resolution: {integrity: sha512-686fgAHaJY7wLTFEq7nnKqeQrhqmXB19d1HnqT35Ci7BN6hbAYLZUezTQ062uUHM7ggZEQlqJ94Ftls+KDXU8Q==}
     engines: {node: '>=16.14.0'}
@@ -6786,6 +6799,8 @@ snapshots:
 
   '@types/json-schema@7.0.15': {}
 
+  '@types/luxon@3.4.2': {}
+
   '@types/node@22.13.5':
     dependencies:
       undici-types: 6.20.0
@@ -8798,6 +8813,8 @@ snapshots:
     dependencies:
       vue: 3.5.13(typescript@5.7.3)
 
+  luxon@3.5.0: {}
+
   magic-string-ast@0.7.0:
     dependencies:
       magic-string: 0.30.17
diff --git a/server/api/worlds/query.get.ts b/server/api/worlds/query.get.ts
index e980f36..e38beb0 100644
--- a/server/api/worlds/query.get.ts
+++ b/server/api/worlds/query.get.ts
@@ -4,15 +4,16 @@ import type { World } from "~/models/World";
 
 const querySchema = z.object({
   id: z.number({ coerce: true }).positive().int().optional(),
-  full: z.boolean({ coerce: true }).optional()
+  full: z.boolean({ coerce: true }).optional(),
+  gmId: z.string().optional(),
 })
 
 export default defineEventHandler(async (event) => {
   const client = await serverSupabaseClient(event)
   const query = await getValidatedQuery(event, querySchema.parse)
 
-  const fullFields = "id, name, description, color, calendars (id, name, color, today)"
-  const partialFields = "id, name, description, color"
+  const fullFields = "id, name, description, color, createdAt:created_at, updatedAt:updated_at, calendars (id, name, color, today, eventNb:calendar_events(count))"
+  const partialFields = "id, name, description, color, createdAt:created_at, updatedAt:updated_at, calendars (eventNb:calendar_events(count))"
 
   let output
 
@@ -23,10 +24,11 @@ export default defineEventHandler(async (event) => {
   }
 
   if (query.id) {
-    // const eventNb = await client.from('worlds').select('events:calendars(calendar_events(id))').order('events_count')
-
     return output.eq("id", query.id).single<World>()
   }
+  if (query.gmId) {
+    return output.eq("gm_id", query.gmId).overrideTypes<World[]>()
+  }
 
-  return output.returns<World[]>()
+  return output.overrideTypes<World[]>()
 })
diff --git a/supabase/migrations/202401_init.sql b/supabase/migrations/202401_init.sql
index f2aaee0..065f8e5 100644
--- a/supabase/migrations/202401_init.sql
+++ b/supabase/migrations/202401_init.sql
@@ -44,6 +44,8 @@ create table public.worlds (
   description   text,
   color         app_colors default 'black',
   state         world_state default 'draft',
+  created_at    timestamptz default now(),
+  updated_at    timestamptz,
   gm_id         uuid references public.users on delete cascade
 );
 comment on table public.worlds is 'Worlds belonging to a single user ; a game master.';
@@ -66,6 +68,8 @@ create table public.calendars (
   today             json not null,
   color             app_colors default 'black',
   state             calendar_state default 'draft',
+  created_at        timestamptz default now(),
+  updated_at        timestamptz,
   world_id          bigint references public.worlds on delete cascade not null
 );
 comment on table public.calendars is 'Calendar settings and configuration attached to a single world.';
@@ -100,6 +104,8 @@ create table public.calendar_events (
   category      bigint references public.calendar_event_categories on delete cascade,
   hidden        boolean default false,
   wiki          text,
+  created_at    timestamptz default now(),
+  updated_at    timestamptz,
   calendar_id   bigint references public.calendars on delete cascade not null
 );
 comment on table public.calendar_events is 'Events linked to a world';
@@ -123,9 +129,11 @@ comment on table public.calendar_event_categories_links is 'Link tables for mult
 
 -- Character categories
 create table public.character_categories (
-  id        bigint generated by default as identity primary key,
-  name      text not null,
-  color     app_colors default 'black',
+  id          bigint generated by default as identity primary key,
+  name        text not null,
+  color       app_colors default 'black',
+  created_at  timestamptz default now(),
+  updated_at  timestamptz,
   unique (name)
 );
 comment on table public.character_categories is 'Categories describing characters';
@@ -141,6 +149,8 @@ create table public.characters (
   hidden_birth    boolean,
   hidden_death    boolean,
   wiki            text,
+  created_at      timestamptz default now(),
+  updated_at      timestamptz,
   world_id        bigint references public.worlds on delete cascade not null
 );
 comment on table public.characters is 'Characters linked to a world';