Incorrect handling of a date near daylight saving time end.

[a1russell]

If I write a test like:

it('formats a date near daylight saving time end, offsetting it to a given time zone', () => {
  const date = new Date('2020-10-31T21:37:02.233-05:00');
  const timeZone = 'America/Chicago';
  const offsetDate: Date = utcToZonedTime(date.toISOString(), timeZone);
  const result = format(offsetDate, "yyyy-MM-dd h:mmaaaaa'm' xxx", { timeZone });
  expect(result).toEqual('2020-10-31 9:37pm -05:00');
});

I receive a failure:

Error: Expected '2020-10-31 9:37pm -06:00' to equal '2020-10-31 9:37pm -05:00'.

This was working for some time, beginning with v1.0.11. The regression was introduced in v1.1.2. The current version (also broken) as I write this is v1.1.6.

[a1russell]

Is there any more information I can provide on this? Or am I using the API incorrectly or something? I put some effort into filing this issue, so I would be pleased to see a response.

[marnusw]

Thank you for the report. This issue was fixed in 72728b7 and 5eef1ec for release in 1.2.0.