Unix timestamp

-21939724800

Thu 04 Oct 1274 12:00:00 AM UTC

Coordinated Universal Time

Thu Oct 4 00:00:00 1274 UTC

In your local timezone

1274-10-04T00:00:00+00:00

ISO 8601

Thu, 04 Oct 1274 00:00:00 +0000

RFC 2822