Unix Timestamp Converter

Convert Unix epoch timestamps to dates and back. Supports seconds and milliseconds.

Current Unix Time

Seconds

Milliseconds

Timestamp → Date

Unix timestamp

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Date → Timestamp

Date and time

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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, 00:00:00 UTC. It is a universal way to represent time across systems.

Seconds or milliseconds — how do I know?

Timestamps with 10 digits are seconds; 13 digits are milliseconds. This converter auto-detects both. Most APIs use seconds, while JavaScript's Date.now() returns milliseconds.

Why do timestamps not show my local timezone?

The converter shows both UTC and your local timezone. Unix timestamps are timezone-independent — the same number represents the same instant everywhere.