Timestamp Converter — Unix, ISO 8601 & Human-Readable

Convert between Unix timestamps, ISO 8601, and human-readable date formats.

How It Works

  1. 1Upload your file by dragging it into the drop zone or clicking to browse.
  2. 2Adjust the quality slider to balance file size and visual fidelity (optional).
  3. 3Click Download to save your converted file.

About Timestamp Converter

Working with timestamps in different formats? This tool converts between Unix timestamps (seconds and milliseconds), ISO 8601 strings, and human-readable date/time formats. Use the 'Now' button to get the current timestamp. Select a timezone to see the date in different time zones. Everything runs in your browser.

Frequently Asked Questions

What timezone is used?

Unix timestamps are timezone-independent (they represent seconds since 1970-01-01 UTC). The human-readable output uses your browser's local timezone.

What's the difference between seconds and milliseconds?

Unix timestamps in seconds are 10 digits (e.g., 1700000000). Milliseconds are 13 digits (e.g., 1700000000000). JavaScript's Date.now() returns milliseconds.

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