Unix timestamp

-21939638400

Fri 05 Oct 1274 12:00:00 AM UTC

Coordinated Universal Time

Fri Oct 5 00:00:00 1274 UTC

In your local timezone

1274-10-05T00:00:00+00:00

ISO 8601

Fri, 05 Oct 1274 00:00:00 +0000

RFC 2822