Date and time (ISO 8601, UTC) to Unix timestamp (seconds)
Type a value in UTC to get it in s instantly.
1234567890s
That moment falls on a Friday, day 44 of 2009 (UTC).
Convert the other way: s to 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 UTC to s
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: 2009-02-13 23:31:30 UTC = 1234567890 s.
Every unit
That moment in every format
Tables
UTC to s conversion table
| UTC | s |
|---|---|
| 2000-01-01 00:00:00 UTC | 946684800 s |
| 2001-09-09 01:46:40 UTC | 1000000000 s |
| 2004-11-09 11:33:20 UTC | 1100000000 s |
| 2008-01-10 21:20:00 UTC | 1200000000 s |
| 2011-03-13 07:06:40 UTC | 1300000000 s |
| 2014-05-13 16:53:20 UTC | 1400000000 s |
| 2017-07-14 02:40:00 UTC | 1500000000 s |
| 2020-09-13 12:26:40 UTC | 1600000000 s |
| 2023-11-14 22:13:20 UTC | 1700000000 s |
| 2027-01-15 08:00:00 UTC | 1800000000 s |
| 2030-03-17 17:46:40 UTC | 1900000000 s |
| 2033-05-18 03:33:20 UTC | 2000000000 s |
| 2038-01-19 03:14:07 UTC | 2147483647 s |
s to UTC conversion table
| s | UTC |
|---|---|
| 946684800 s | 2000-01-01 00:00:00 UTC |
| 1000000000 s | 2001-09-09 01:46:40 UTC |
| 1100000000 s | 2004-11-09 11:33:20 UTC |
| 1200000000 s | 2008-01-10 21:20:00 UTC |
| 1300000000 s | 2011-03-13 07:06:40 UTC |
| 1400000000 s | 2014-05-13 16:53:20 UTC |
| 1500000000 s | 2017-07-14 02:40:00 UTC |
| 1600000000 s | 2020-09-13 12:26:40 UTC |
| 1700000000 s | 2023-11-14 22:13:20 UTC |
| 1800000000 s | 2027-01-15 08:00:00 UTC |
| 1900000000 s | 2030-03-17 17:46:40 UTC |
| 2000000000 s | 2033-05-18 03:33:20 UTC |
| 2147483647 s | 2038-01-19 03:14:07 UTC |
Quick answers
Quick answers
- How many s is 1970-01-01 00:00:01 UTC?
- 1970-01-01 00:00:01 UTC is 1 s.
- How many s is 1970-01-01 00:00:10 UTC?
- 1970-01-01 00:00:10 UTC is 10 s.
- How many s is 2009-02-13 23:31:30 UTC?
- 2009-02-13 23:31:30 UTC is 1234567890 s.
The units
About these units
Date and time (ISO 8601, UTC) (UTC)
The date written as year-month-day and time, in UTC.
Unix timestamp (seconds) (s)
Seconds since 1970-01-01 00:00:00 UTC: Unix, Linux, PHP, Python.
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