Unix Timestamp Converter
Convert Unix seconds or milliseconds into a readable date, or turn an ISO time into an epoch value.
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How to use this tool
- Choose the direction and seconds or milliseconds explicitly.
- Enter one timestamp or ISO date-time, select a zone and convert.
Things to know
- Use ISO dates (YYYY-MM-DD) and 24-hour times. Time zone rules come from your browser. Nonexistent daylight-saving clock times are rejected.
- Timestamp text: 120 characters with safe whole-millisecond precision. ISO date parsing is explicit; destination dates must fit years 0001-9999. Time zones: 128 characters.
- Use no more than 200,000 characters across the input and settings.
- One explicit ISO date/time and two time zones of at most 128 characters. DST gaps are rejected and repeated clock times require an offset choice.
- Use no more than 200,000 characters across the input and settings.
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