diff --git a/locales/index.d.ts b/locales/index.d.ts
index 69c63cc714..f7944c2311 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -12492,6 +12492,14 @@ export interface Locale extends ILocale {
          * Displays content centered.
          */
         "centerDescription": string;
+        /**
+         * Unix Time
+         */
+        "unixtime": string;
+        /**
+         * Displays a timestamp in the viewer's current timezone.
+         */
+        "unixtimeDescription": string;
         /**
          * Code (Inline)
          */
diff --git a/packages/frontend/src/components/SkMfmWindow.vue b/packages/frontend/src/components/SkMfmWindow.vue
index 14d309b7ba..c544bc528c 100644
--- a/packages/frontend/src/components/SkMfmWindow.vue
+++ b/packages/frontend/src/components/SkMfmWindow.vue
@@ -99,6 +99,16 @@ SPDX-License-Identifier: AGPL-3.0-only
 						</div>
 					</div>
 				</div>
+				<div class="section _block">
+					<div class="title">{{ i18n.ts._mfm.unixtime }}</div>
+					<div class="content">
+						<p>{{ i18n.ts._mfm.unixtimeDescription }}</p>
+						<div class="preview">
+							<Mfm :text="preview_unixtime"/>
+							<MkTextarea v-model="preview_unixtime"><template #label>MFM</template></MkTextarea>
+						</div>
+					</div>
+				</div>
 				<div class="section _block">
 					<div class="title">{{ i18n.ts._mfm.inlineCode }}</div>
 					<div class="content">
@@ -429,6 +439,9 @@ const preview_small = ref(
 const preview_center = ref(
 	`<center>${i18n.ts._mfm.dummy}</center>`,
 );
+const preview_unixtime = ref(
+	`$[unixtime ${Math.floor(Date.now() / 1000)}]`,
+);
 const preview_inlineCode = ref('`<: "Hello, world!"`');
 const preview_blockCode = ref(
 	'```ai\n~ (#i, 100) {\n\t<: ? ((i % 15) = 0) "FizzBuzz"\n\t\t.? ((i % 3) = 0) "Fizz"\n\t\t.? ((i % 5) = 0) "Buzz"\n\t\t. i\n}\n```',
diff --git a/sharkey-locales/en-US.yml b/sharkey-locales/en-US.yml
index f1ad66fc8c..773a8df1cb 100644
--- a/sharkey-locales/en-US.yml
+++ b/sharkey-locales/en-US.yml
@@ -371,6 +371,8 @@ _mfm:
   smallDescription: "Displays content small and thin."
   center: "Center"
   centerDescription: "Displays content centered."
+  unixtime: "Unix Time"
+  unixtimeDescription: "Displays a timestamp in the viewer's current timezone."
   inlineCode: "Code (Inline)"
   inlineCodeDescription: "Displays inline syntax highlighting for (program) code."
   blockCode: "Code (Block)"