Unix timestamp

-17925321600

Mon 21 Dec 1401 12:00:00 AM UTC

Coordinated Universal Time

Mon Dec 21 00:00:00 1401 UTC

In your local timezone

1401-12-21T00:00:00+00:00

ISO 8601

Mon, 21 Dec 1401 00:00:00 +0000

RFC 2822