Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and vice versa. Supports seconds and milliseconds. Instantly shows UTC and local time — no signup needed.
Current Unix time
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How to use the unix timestamp converter
Convert in either direction: paste a Unix timestamp (seconds or milliseconds) to get a human date, or pick a date to get the epoch. The current epoch ticks live at the top so you can grab it with one click.
Formula & explanation
Unix time = seconds since 1970-01-01T00:00:00Z. Milliseconds is ×1000. We auto-detect 10-digit (seconds) vs 13-digit (milliseconds) input.
Examples
1714665600 → 2024-05-02T16:00:00Z. The new millennium (2000-01-01T00:00:00Z) is 946684800.
Frequently asked questions
- What is a Unix timestamp?
- A Unix timestamp is the number of seconds (or milliseconds) elapsed since 1970-01-01T00:00:00Z — also called the Unix epoch. It's the standard way most programming languages and databases store time internally.
- Seconds or milliseconds — how do I tell?
- 10-digit numbers are seconds (e.g. 1714665600). 13-digit numbers are milliseconds (e.g. 1714665600000). This tool detects both automatically.
- What about the year 2038 problem?
- 32-bit signed Unix time overflows in January 2038. JavaScript uses 64-bit floats, so this tool handles timestamps far beyond 2038 — past the year 275,760.
- Which timezone does this use?
- Unix time is always UTC — it has no timezone. This tool shows both UTC and your local browser timezone so you can see both interpretations at once.
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