Unix timestamp

-22537699200

Sat 23 Oct 1255 12:00:00 AM UTC

Coordinated Universal Time

Sat Oct 23 00:00:00 1255 UTC

In your local timezone

1255-10-23T00:00:00+00:00

ISO 8601

Sat, 23 Oct 1255 00:00:00 +0000

RFC 2822