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Unix Timestamp Converter

Convert Unix seconds or milliseconds to a date, or a date back to Unix time.

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Private by design

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About the Unix Timestamp Converter

Unix Timestamp Converter recognizes both seconds and milliseconds and reports local time, UTC ISO text and the numeric epoch value. Date input is interpreted in the browser's local timezone.

How to use the Unix Timestamp Converter

  1. Select the conversion direction.
  2. Enter a timestamp or local date and choose its unit.
  3. Convert and use the explicitly labeled UTC or local result.

Practical tips

  • Ten-digit current timestamps are usually seconds; thirteen-digit values are usually milliseconds.
  • Store timezone-aware ISO strings when human interpretation matters.
Helpful answers

Unix Timestamp Converter FAQs