diff --git a/extension-dependencies.json b/extension-dependencies.json
index 6e4e4bff2c..27bf88a562 100644
--- a/extension-dependencies.json
+++ b/extension-dependencies.json
@@ -35,6 +35,10 @@
     "https://cdn.jsdelivr.net/npm/lz-string@1.5.0/libs/lz-string.min.js": {
       "sha256": "95f4d1cbf099f57161b664bc048426ec3df92637801a4c79116e83315aa787e7",
       "contentType": "application/javascript; charset=utf-8"
+    },
+    "https://cdn.jsdelivr.net/npm/temporal-polyfill@0.3.0/global.min.js": {
+      "sha256": "719ec13d7f412157f9dd59456a0aaf97f755f15d8e848edddbb28e391b3ca3f6",
+      "contentType": "application/javascript; charset=utf-8"
     }
   }
 }
\ No newline at end of file
diff --git a/extensions/8to16/temporal.js b/extensions/8to16/temporal.js
new file mode 100644
index 0000000000..fb3f1ca063
--- /dev/null
+++ b/extensions/8to16/temporal.js
@@ -0,0 +1,105 @@
+// Name: Temporal
+// ID: temporalby8x2
+// Description: Advanced time blocks.
+// By: 8to16 <https://scratch.mit.edu/users/8to16/>
+// License: MPL-2.0
+
+// @ts-nocheck
+/* eslint-disable no-undef */
+
+(async function (Scratch) {
+  "use strict";
+
+  if (!Scratch.extensions.unsandboxed) {
+    throw new Error("Temporal extension must run unsandboxed");
+  }
+
+  if (typeof window.Temporal === "undefined") {
+    await Scratch.external.evalAndReturn(
+      "https://cdn.jsdelivr.net/npm/temporal-polyfill@0.3.0/global.min.js",
+      "Temporal"
+    );
+  }
+
+  const blockIconURI =
+    "data:image/svg+xml,%3Csvg%20version%3D%221.1%22%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20xmlns%3Axlink%3D%22http%3A//www.w3.org/1999/xlink%22%20width%3D%2228.0123%22%20height%3D%2228.0123%22%20viewBox%3D%220%2C0%2C28.0123%2C28.0123%22%3E%3Cg%20transform%3D%22translate%28-225.99386%2C-165.99386%29%22%3E%3Cg%20stroke%3D%22%23005188%22%20stroke-width%3D%222%22%20stroke-miterlimit%3D%2210%22%3E%3Cpath%20d%3D%22M226.99387%2C180.000002c0%2C-7.1831%205.82305%2C-13.000615%2013.000615%2C-13.000615c7.1831%2C0%2013.000615%2C5.82305%2013.000615%2C13.000615c0%2C7.1831%20-5.82305%2C13.000615%20-13.000615%2C13.000615c-7.1831%2C0%20-13.000615%2C-5.82305%20-13.000615%2C-13.000615z%22%20fill%3D%22%23ffffff%22%20stroke-linecap%3D%22butt%22/%3E%3Cpath%20d%3D%22M250.16156%2C180.25856h-11.26048v-10.1807%22%20fill%3D%22none%22%20stroke-linecap%3D%22round%22/%3E%3C/g%3E%3C/g%3E%3C/svg%3E";
+
+  class TemporalExtension {
+    getInfo() {
+      return {
+        id: "temporalby8x2",
+        name: Scratch.translate("Temporal"),
+        blockIconURI,
+        color1: "#5598d4",
+        color2: "#236fa8",
+        color3: "#005188",
+        blocks: [
+          {
+            opcode: "now",
+            text: Scratch.translate("current timestamp"),
+            blockType: Scratch.BlockType.REPORTER,
+          },
+          {
+            opcode: "timestamp",
+            text: Scratch.translate(
+              "timestamp of date: [YYYY]-[MM]-[DD] time: [HH]:[MIN]:[SS]"
+            ),
+            blockType: Scratch.BlockType.REPORTER,
+            arguments: {
+              YYYY: {
+                type: Scratch.ArgumentType.NUMBER,
+                defaultValue: "2020",
+              },
+              MM: {
+                type: Scratch.ArgumentType.NUMBER,
+                defaultValue: "06",
+              },
+              DD: {
+                type: Scratch.ArgumentType.NUMBER,
+                defaultValue: "08",
+              },
+              HH: {
+                type: Scratch.ArgumentType.NUMBER,
+                defaultValue: "00",
+              },
+              MIN: {
+                type: Scratch.ArgumentType.NUMBER,
+                defaultValue: "00",
+              },
+              SS: {
+                type: Scratch.ArgumentType.NUMBER,
+                defaultValue: "00",
+              },
+            },
+          },
+          {
+            opcode: "timezone",
+            text: Scratch.translate("timezone"),
+            blockType: Scratch.BlockType.REPORTER,
+          },
+        ],
+      };
+    }
+
+    now(args, util) {
+      return Temporal.Now.plainDateTimeISO().toString();
+    }
+
+    timestamp(args, util) {
+      return new Temporal.PlainDateTime(
+        args.YYYY,
+        args.MM,
+        args.DD,
+        args.HH,
+        args.MIN,
+        args.SS
+      );
+    }
+
+    timezone(args, util) {
+      return Temporal.Now.timeZoneId();
+    }
+  }
+
+  Scratch.extensions.register(new TemporalExtension());
+})(Scratch);