Unix timestamp (seconds) to HTTP / e-mail date
Type a value in s to get it in GMT instantly.
Fri, 13 Feb 2009 23:31:30GMT
That moment falls on a Friday, day 44 of 2009 (UTC).
What it means
Where is that on the timeline?
All dates are UTC. Unix time and these counts ignore leap seconds; Excel serials follow the 1900 date system and start at 1 March 1900.
The math
How to convert s to GMT
date = 1970-01-01 00:00:00 UTC + timestamp seconds. Excel serial = Unix ÷ 86,400 + 25,569; Julian Date = Unix ÷ 86,400 + 2,440,587.5.
Example: 1234567890 s = Fri, 13 Feb 2009 23:31:30 GMT.
Every unit
That moment in every format
Tables
s to GMT conversion table
| s | GMT |
|---|---|
| 946684800 s | Sat, 01 Jan 2000 00:00:00 GMT |
| 1000000000 s | Sun, 09 Sep 2001 01:46:40 GMT |
| 1100000000 s | Tue, 09 Nov 2004 11:33:20 GMT |
| 1200000000 s | Thu, 10 Jan 2008 21:20:00 GMT |
| 1300000000 s | Sun, 13 Mar 2011 07:06:40 GMT |
| 1400000000 s | Tue, 13 May 2014 16:53:20 GMT |
| 1500000000 s | Fri, 14 Jul 2017 02:40:00 GMT |
| 1600000000 s | Sun, 13 Sep 2020 12:26:40 GMT |
| 1700000000 s | Tue, 14 Nov 2023 22:13:20 GMT |
| 1800000000 s | Fri, 15 Jan 2027 08:00:00 GMT |
| 1900000000 s | Sun, 17 Mar 2030 17:46:40 GMT |
| 2000000000 s | Wed, 18 May 2033 03:33:20 GMT |
| 2147483647 s | Tue, 19 Jan 2038 03:14:07 GMT |
GMT to s conversion table
| GMT | s |
|---|---|
| Sat, 01 Jan 2000 00:00:00 GMT | 946684800 s |
| Sun, 09 Sep 2001 01:46:40 GMT | 1000000000 s |
| Tue, 09 Nov 2004 11:33:20 GMT | 1100000000 s |
| Thu, 10 Jan 2008 21:20:00 GMT | 1200000000 s |
| Sun, 13 Mar 2011 07:06:40 GMT | 1300000000 s |
| Tue, 13 May 2014 16:53:20 GMT | 1400000000 s |
| Fri, 14 Jul 2017 02:40:00 GMT | 1500000000 s |
| Sun, 13 Sep 2020 12:26:40 GMT | 1600000000 s |
| Tue, 14 Nov 2023 22:13:20 GMT | 1700000000 s |
| Fri, 15 Jan 2027 08:00:00 GMT | 1800000000 s |
| Sun, 17 Mar 2030 17:46:40 GMT | 1900000000 s |
| Wed, 18 May 2033 03:33:20 GMT | 2000000000 s |
| Tue, 19 Jan 2038 03:14:07 GMT | 2147483647 s |
Quick answers
Quick answers
- How many GMT is 1 s?
- 1 s is Thu, 01 Jan 1970 00:00:01 GMT.
- How many GMT is 10 s?
- 10 s is Thu, 01 Jan 1970 00:00:10 GMT.
- How many GMT is 1234567890 s?
- 1234567890 s is Fri, 13 Feb 2009 23:31:30 GMT.
The units
About these units
Unix timestamp (seconds) (s)
Seconds since 1970-01-01 00:00:00 UTC: Unix, Linux, PHP, Python.
HTTP / e-mail date (GMT)
The form used in HTTP headers and e-mail: Tue, 14 Nov 2023 22:13:20 GMT.
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