diff --git a/apps/server/src/services/script.spec.ts b/apps/server/src/services/script.spec.ts
index f94c93f26..da6978666 100644
--- a/apps/server/src/services/script.spec.ts
+++ b/apps/server/src/services/script.spec.ts
@@ -59,7 +59,7 @@ describe("Script", () => {
         });
     });
 
-    describe("dayjs", () => {
+    describe("dayjs in backend scripts", () => {
         const scriptNote = note("dayjs", {
             type: "code",
             mime: "application/javascript;env=backend",
@@ -74,7 +74,7 @@ describe("Script", () => {
             });
         });
 
-        it("dayjs is-same-or-before", () => {
+        it("dayjs is-same-or-before plugin exists", () => {
             cls.init(() => {
                 const bundle = getScriptBundle(scriptNote.note, true, "backend", [], `return api.dayjs("2023-10-01").isSameOrBefore(api.dayjs("2023-10-02"));`);
                 expect(bundle).toBeDefined();
@@ -82,33 +82,5 @@ describe("Script", () => {
                 expect(result).toBe(true);
             });
         });
-
-        it("dayjs is-same-or-after", () => {
-            cls.init(() => {
-                const bundle = getScriptBundle(scriptNote.note, true, "backend", [], `return api.dayjs("2023-10-02").isSameOrAfter(api.dayjs("2023-10-01"));`);
-                expect(bundle).toBeDefined();
-                const result = executeBundle(bundle!);
-                expect(result).toBe(true);
-            });
-        });
-
-        it("dayjs is-between", () => {
-            cls.init(() => {
-                const bundle = getScriptBundle(scriptNote.note, true, "backend", [], `return api.dayjs("2023-10-02").isBetween(api.dayjs("2023-10-01"), api.dayjs("2023-10-03"));`);
-                expect(bundle).toBeDefined();
-                const result = executeBundle(bundle!);
-                expect(result).toBe(true);
-            });
-        });
-
-        // advanced format
-        it("dayjs advanced format", () => {
-            cls.init(() => {
-                const bundle = getScriptBundle(scriptNote.note, true, "backend", [], `return api.dayjs("2023-10-01").format("Q");`);
-                expect(bundle).toBeDefined();
-                const result = executeBundle(bundle!);
-                expect(result).not.toBe("Q");
-            });
-        });
     });
 });
diff --git a/packages/commons/src/lib/dayjs.spec.ts b/packages/commons/src/lib/dayjs.spec.ts
index 43e3581a1..7e8f41a55 100644
--- a/packages/commons/src/lib/dayjs.spec.ts
+++ b/packages/commons/src/lib/dayjs.spec.ts
@@ -1,5 +1,5 @@
 import { LOCALES } from "./i18n.js";
-import { DAYJS_LOADER } from "./dayjs.js";
+import { DAYJS_LOADER, dayjs } from "./dayjs.js";
 
 describe("dayjs", () => {
     it("all dayjs locales are valid", async () => {
@@ -10,4 +10,22 @@ describe("dayjs", () => {
             await dayjsLoader();
         }
     });
+
+    describe("Plugins", () => {
+        it("is-same-or-before is available", () => {
+            expect(dayjs("2023-10-01").isSameOrBefore(dayjs("2023-10-02"))).toBe(true);
+        });
+
+        it("is-same-or-after is available", () => {
+            expect(dayjs("2023-10-02").isSameOrAfter(dayjs("2023-10-01"))).toBe(true);
+        });
+
+        it("is-between is available", () => {
+            expect(dayjs("2023-10-02").isBetween(dayjs("2023-10-01"), dayjs("2023-10-03"))).toBe(true);
+        });
+
+        it("advanced format is available", () => {
+            expect(dayjs("2023-10-01").format("Q")).not.toBe("Q");
+        });
+    });
 });