Unix timestamp

-21925728000

Fri 15 Mar 1275 12:00:00 AM UTC

Coordinated Universal Time

Fri Mar 15 00:00:00 1275 UTC

In your local timezone

1275-03-15T00:00:00+00:00

ISO 8601

Fri, 15 Mar 1275 00:00:00 +0000

RFC 2822