Timestamp Converter

Convert Unix timestamp to date/time or date/time to timestamp. Supports seconds and milliseconds.

Timestamp to Date

Timestamp

Milliseconds

Date to Timestamp

Date & time (local)

About Unix Timestamps

Unix timestamps are widely used in APIs, databases, and configs because they are timezone-agnostic and easy to compare. This tool helps you convert between human-readable dates and numeric timestamps in seconds or milliseconds.

Frequently Asked Questions

What is a Unix timestamp?

A Unix timestamp is the number of seconds (or milliseconds) since January 1, 1970 00:00:00 UTC (the Unix epoch). It is used in many programming languages and databases.

What timezone is used?

When you enter a date, we use your browser's local timezone. The tool also shows the equivalent in UTC. Timestamps are always in UTC; we display both local and UTC time for clarity.

Seconds vs milliseconds?

JavaScript and many APIs use milliseconds (13 digits). Some systems use seconds (10 digits). This tool supports both: use the toggle or enter a value — values above 1e12 are treated as milliseconds.