What is a Unix timestamp?

A Unix timestamp, or epoch time, is the number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC. It is a common way to store and compare times across systems.

How do I convert a timestamp to a date?

Enter the timestamp in the input field and click Convert. The tool shows the date in UTC, your local time zone, and a relative description such as '2 days ago'.

How do I convert a date to a Unix timestamp?

Pick a date and time using the date picker and click Convert. The tool returns the Unix timestamp in both seconds and milliseconds.

What is the difference between seconds and milliseconds?

Some systems store time in seconds (classic Unix time) while others use milliseconds. This converter shows both so you can use whichever your system expects.

What is UTC vs local time?

UTC is a universal time standard not affected by time zones or daylight saving. Local time is the same moment adjusted to your device's time zone.

What does 'relative time' mean?

Relative time describes a timestamp compared to now, such as '3 hours ago' or 'in 2 days'. It makes timestamps easier to interpret at a glance.

Why does my timestamp show the wrong date?

This usually happens when seconds and milliseconds are mixed up. If a date looks far in the past or future, try the other unit. Also check whether your timestamp is in UTC.

Is this timestamp converter free?

Yes. The Unix timestamp converter is completely free and requires no signup. All conversion happens locally in your browser. No data is uploaded to any server.

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Unix Timestamp Converter

Convert Unix timestamps to dates and dates to timestamps instantly. Free, no signup required.

Timestamp to Date

Unix Timestamp

Input is in milliseconds

UTC: —

Local: —

Relative: —

Date to Timestamp

Date & Time

Seconds: —

Milliseconds: —

Frequently Asked Questions

What is a Unix timestamp?: A Unix timestamp, or epoch time, is the number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC. It is a common way to store and compare times across systems.
How do I convert a timestamp to a date?: Enter the timestamp in the input field and click Convert. The tool shows the date in UTC, your local time zone, and a relative description such as '2 days ago'.
How do I convert a date to a Unix timestamp?: Pick a date and time using the date picker and click Convert. The tool returns the Unix timestamp in both seconds and milliseconds.
What is the difference between seconds and milliseconds?: Some systems store time in seconds (classic Unix time) while others use milliseconds. This converter shows both so you can use whichever your system expects.
What is UTC vs local time?: UTC is a universal time standard not affected by time zones or daylight saving. Local time is the same moment adjusted to your device's time zone.
What does 'relative time' mean?: Relative time describes a timestamp compared to now, such as '3 hours ago' or 'in 2 days'. It makes timestamps easier to interpret at a glance.
Why does my timestamp show the wrong date?: This usually happens when seconds and milliseconds are mixed up. If a date looks far in the past or future, try the other unit. Also check whether your timestamp is in UTC.
Is this timestamp converter free?: Yes. The Unix timestamp converter is completely free and requires no signup. All conversion happens locally in your browser. No data is uploaded to any server.