Function fakeNow

pkgs/tz/src/date/tests.ts:12–15

(date = new Date(defaultDateStr))

  // NOTE: Make sure to add `{ concurrent: false }` to all tests that use it!
  function fakeNow(date = new Date(defaultDateStr)) {
    now = date;
    vi.useFakeTimers({ now });
  }

  afterEach(() => vi.useRealTimers());