What is a Unix timestamp?

A Unix timestamp is the number of seconds elapsed since January 1, 1970 00:00:00 UTC (the Unix epoch). It's the standard way to represent moments in time in most programming languages.

How do I convert a timestamp in JavaScript?

Use new Date(timestamp * 1000).toISOString() for seconds, or new Date(timestamp).toISOString() for milliseconds. This tool handles both automatically.

What is the 'Year 2038 problem'?

32-bit signed Unix timestamps overflow at 2,147,483,647 — January 19, 2038. Modern 64-bit systems don't have this limitation.

Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates. Supports seconds, milliseconds, and timezones.

Current Unix Timestamp

—

seconds

—

milliseconds

Loading current time…

Display timezone

Timestamp → Date

Date → Timestamp

Common Timestamps

About Unix Timestamp Converter Online

Free Unix timestamp converter. Convert Unix timestamps to human-readable dates and vice versa. Live current timestamp, timezone support, and relative time.

How to use Timestamp Converter

1View the current live Unix timestamp at the top.
2Enter a Unix timestamp (seconds or ms) to convert to a human-readable date.
3Or pick a date/time to get the corresponding Unix timestamp.
4Select a timezone to localize the output.

Frequently Asked Questions

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