Unix Timestamp Converter

Epoch seconds or milliseconds to a date in UTC or any time zone, and back again. The current Unix time is shown live.

Current Unix time (seconds)

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Timestamp → date

Unix timestamp (seconds or milliseconds)

Show the date in

Enter a timestamp, or press “Use now”.

Date → timestamp

DateTime

Interpreted in UTC / GMT (choose the zone above).

Seconds

1789843080

Milliseconds

1789843080000

ISO 8601 (UTC)

2026-09-19T18:38:00.000Z

Notable timestamps

Well-known Unix timestamps and their UTC dates
Timestamp	UTC	What it is
0	1970-01-01T00:00:00Z	The Unix epoch
1,000,000,000	2001-09-09T01:46:40Z	One billion seconds
1,234,567,890	2009-02-13T23:31:30Z	1234567890
1,500,000,000	2017-07-14T02:40:00Z	1.5 billion seconds
2,000,000,000	2033-05-18T03:33:20Z	Two billion seconds
2,147,483,647	2038-01-19T03:14:07Z	Largest signed 32-bit value (the "year 2038 problem")

How to use the unix timestamp converter

1Paste a timestampSeconds (10 digits) or milliseconds (13 digits) are detected automatically. Negative values are dates before 1970.
2Or enter a datePick a date, time and time zone to get the timestamp for that moment, with daylight saving applied for that date.
3Copy the resultsEvery result has a copy button: ISO 8601 in UTC, the local time, the RFC 2822 form and the timestamp in seconds and milliseconds.

Unix Timestamp Converter FAQs

What is a Unix timestamp?

The number of seconds since 00:00:00 UTC on 1 January 1970 (the Unix epoch), ignoring leap seconds. It is the same everywhere in the world, which is why systems store time this way and convert to local time only for display.

Seconds or milliseconds?

Unix and most databases use seconds (10 digits today); JavaScript, Java and many APIs use milliseconds (13 digits). The converter reads anything with more than 11 digits as milliseconds.

What is the year 2038 problem?

Systems that store the timestamp as a signed 32-bit integer cannot represent times after 2147483647 seconds, which is 03:14:07 UTC on 19 January 2038. Modern systems use 64-bit values.

Does the timestamp depend on my time zone?

No. A timestamp identifies a single instant. Only the human-readable date depends on the zone you display it in, which is why this page lets you choose one.

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