Mock Date in jest

test.ts

// https://github.com/facebook/jest/issues/2234#issuecomment-731451275
beforeAll(() => {
  jest.useFakeTimers('modern'); // tell Jest to use a different timer implementation.
  jest.setSystemTime(new Date('2022-02-15T22:30:00.000+01:00').getTime());
});

afterAll(() => {
  // Back to reality...
  jest.useRealTimers();
});