Epoch / Unix Timestamp Converter
Paste a Unix timestamp to see the date, or type a date to get the timestamp. Seconds and milliseconds are detected automatically.
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The formula
Unix time = seconds since 1 January 1970 00:00:00 UTC. Milliseconds = seconds x 1000.
What Unix time is
Computers often store time as the number of seconds since the "epoch", midnight UTC on 1 January 1970. It does not depend on time zones or daylight saving, which makes it ideal for storing and comparing moments in databases and logs.
Seconds or milliseconds?
A timestamp with 10 digits, such as 1790000000, is in seconds. One with 13 digits, such as 1790000000000, is in milliseconds, which is what JavaScript uses. We detect which one you pasted and tell you.
Useful values
| Timestamp (s) | Date (UTC) |
|---|---|
| 0 | 1 Jan 1970 00:00:00 |
| 1000000000 | 9 Sep 2001 01:46:40 |
| 1700000000 | 14 Nov 2023 22:13:20 |
| 2000000000 | 18 May 2033 03:33:20 |
The year 2038 problem
Systems that store Unix time in a signed 32-bit number run out on 19 January 2038. Modern systems use 64 bits, which lasts for billions of years.
Examples to check
Type these into the calculator above to see how it behaves. Every result below was produced by the same calculator code that runs on this page.
| What you enter | What you get |
|---|---|
| Unix timestamp to date; Unix timestamp (seconds or milliseconds): 1700000000 | UTC: Tue, 14 Nov 2023 22:13:20 GMT |
| Unix timestamp to date; Unix timestamp (seconds or milliseconds): 1790000000000 | UTC: Mon, 21 Sep 2026 14:13:20 GMT |
| Date and time to Unix timestamp; Date and time (UTC): 2026-01-01 00:00:00 | Unix timestamp (seconds): 1767225600 |
Epoch / Unix Timestamp Converter: frequently asked questions
How do I get the current timestamp?
In JavaScript, Math.floor(Date.now() / 1000). In Python, int(time.time()). In a Unix shell, date +%s.
Which time zone is the date in?
Unix time is always UTC. We also show the equivalent in your own time zone.
Does the conversion happen on my device?
Yes. Your text, colours and files are processed in your browser and never uploaded.
Is what I enter in this converter saved or sent anywhere?
No. The calculation runs in your browser, so what you enter is not sent to our servers. We only count, anonymously, whether a tool ran successfully.
Is this converter free to use?
Yes. It is free, needs no sign-up and has no usage limit.
Last reviewed: October 3, 2026