Acharya Tools

Timestamp Converter

Convert between Unix timestamps (seconds & milliseconds), UTC, ISO 8601, and local date formats.

Processed locally in your browser.

How It Works

  1. 1Enter any Unix epoch timestamp in seconds or milliseconds, or select a date/time picker.
  2. 2Instantly view UTC string, ISO 8601, Local string, and relative time (e.g. 2 hours ago).
  3. 3Click the 'Now' button to get the current real-time timestamp.

Example Preview

Unix Timestamp in Seconds

1700000000

Frequently Asked Questions

How does it differentiate seconds vs milliseconds?

10-digit numbers are treated as seconds; 13-digit numbers are treated as milliseconds.

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