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Local file processing

Timestamp Converter

Convert Unix seconds, Unix milliseconds and timezone-aware ISO dates into clear, copyable values.

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Paste text or open a fileOr start from an example:
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ISO input needs Z or a timezone offset. Unix values use your selected unit.

Timestamp formats

Valid timestamp

The result appears here as you type.

Ctrl+↵ copy result · Ctrl+Shift+F result to input

How it works

How to use Timestamp Converter

  1. Enter a Unix timestamp or an ISO date with a timezone.
  2. Select the input format explicitly.
  3. Read the UTC ISO, Unix and local-time values.
Frequently asked questions

Useful details

2 answers
Which timezone does ISO use?

Enter Z for UTC or an explicit offset such as +03:00. The result shows UTC and your device's local time.

Are decimal seconds accepted?

Yes, to millisecond precision. Milliseconds themselves must be whole numbers.

More help

Guides, common conversions and useful next steps.

Continue with your result

Use the action beside a finished result to send it directly, or open another tool: