more consistent jest time mocks

package.json

@@ -1,7 +1,7 @@
 {
   "name": "tinode-webapp",
   "description": "Tinode messenger for the web",
-  "version": "0.24.2",
+  "version": "0.24.3",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tinode/webapp.git"

src/lib/strformat.test.js

@@ -9,15 +9,9 @@ import {
 } from './strformat.js';
 
 describe('shortDateFormat', () => {
-  const now = new Date('2025-07-25T12:30:00');
-  // Mock Date.now
-  let dateNowSpy;
-  beforeAll(() => {
-    dateNowSpy = jest.spyOn(Date, 'now').mockImplementation(() => now.getTime());
-  });
-  afterAll(() => {
-    dateNowSpy.mockRestore();
-  });
+  jest
+    .useFakeTimers()
+    .setSystemTime(new Date('2025-07-25T12:30:00Z'));
 
   test('should format for same day', () => {
     const then = new Date('2025-07-25T10:15:00');
@@ -38,15 +32,10 @@ describe('shortDateFormat', () => {
 });
 
 describe('relativeDateFormat', () => {
-  const now = new Date('2025-07-25T12:30:00Z');
-  // Mock Date.now
-  let dateNowSpy;
-  beforeAll(() => {
-    dateNowSpy = jest.spyOn(Date, 'now').mockImplementation(() => now.getTime());
-  });
-  afterAll(() => {
-    dateNowSpy.mockRestore();
-  });
+  // Mock current date to a fixed point for consistent testing.
+  jest
+    .useFakeTimers()
+    .setSystemTime(new Date('2025-07-25T12:30:00Z'));
 
   test('should format for today', () => {
     const then = new Date('2025-07-25T10:00:00Z');

src/version.js

@@ -1,3 +1,3 @@
 // This is a generated file. Don't edit.
 
-export const PACKAGE_VERSION = "0.24.2";
+export const PACKAGE_VERSION = "0.24.3";

umd/index.dev.js

@@ -8655,7 +8655,7 @@ __webpack_require__.r(__webpack_exports__);
 /* harmony export */ __webpack_require__.d(__webpack_exports__, {
 /* harmony export */   PACKAGE_VERSION: function() { return /* binding */ PACKAGE_VERSION; }
 /* harmony export */ });
-const PACKAGE_VERSION = "0.24.2";
+const PACKAGE_VERSION = "0.24.3";
 
 /***/ }),
 

version.js

@@ -1,3 +1,3 @@
 // This is a generated file. Don't edit.
 
-const PACKAGE_VERSION = "0.24.2";
+const PACKAGE_VERSION = "0.24.3";