2021 timestamp table
| Event | Timestamp (s) | ISO 8601 | Readable UTC |
|---|---|---|---|
| 2021 first second | 1609459200 | 2021-01-01T00:00:00.000Z | Fri, 01 Jan 2021 00:00:00 GMT |
| 2021 final second | 1640995199 | 2021-12-31T23:59:59.000Z | Fri, 31 Dec 2021 23:59:59 GMT |
| January 1 00:00 UTC | 1609459200 | 2021-01-01T00:00:00.000Z | Fri, 01 Jan 2021 00:00:00 GMT |
| February 1 00:00 UTC | 1612137600 | 2021-02-01T00:00:00.000Z | Mon, 01 Feb 2021 00:00:00 GMT |
| March 1 00:00 UTC | 1614556800 | 2021-03-01T00:00:00.000Z | Mon, 01 Mar 2021 00:00:00 GMT |
| April 1 00:00 UTC | 1617235200 | 2021-04-01T00:00:00.000Z | Thu, 01 Apr 2021 00:00:00 GMT |
| May 1 00:00 UTC | 1619827200 | 2021-05-01T00:00:00.000Z | Sat, 01 May 2021 00:00:00 GMT |
| June 1 00:00 UTC | 1622505600 | 2021-06-01T00:00:00.000Z | Tue, 01 Jun 2021 00:00:00 GMT |
| July 1 00:00 UTC | 1625097600 | 2021-07-01T00:00:00.000Z | Thu, 01 Jul 2021 00:00:00 GMT |
| August 1 00:00 UTC | 1627776000 | 2021-08-01T00:00:00.000Z | Sun, 01 Aug 2021 00:00:00 GMT |
| September 1 00:00 UTC | 1630454400 | 2021-09-01T00:00:00.000Z | Wed, 01 Sep 2021 00:00:00 GMT |
| October 1 00:00 UTC | 1633046400 | 2021-10-01T00:00:00.000Z | Fri, 01 Oct 2021 00:00:00 GMT |
| November 1 00:00 UTC | 1635724800 | 2021-11-01T00:00:00.000Z | Mon, 01 Nov 2021 00:00:00 GMT |
| December 1 00:00 UTC | 1638316800 | 2021-12-01T00:00:00.000Z | Wed, 01 Dec 2021 00:00:00 GMT |
Developer context
2021 timestamps are useful for log review, API fixtures, database boundaries, yearly reports, and test data that needs stable UTC values.