Unix Timestamp Converter
Convert Unix timestamps to dates and back, in seconds or milliseconds.
Current timestamp
… Timestamp → Date
Date → Timestamp
About this tool
Paste a Unix timestamp and it auto-detects seconds or milliseconds, then shows the moment in your local timezone, in UTC, as ISO 8601 and as a relative time like "3 hours ago". Going the other way, pick a date and you get the timestamp in both units with copy buttons.
The live current timestamp at the top ticks every second. Nobody can read
1718200000 at a glance, so this saves a trip to the terminal when debugging.
Conversion happens locally in your browser and nothing leaves the page.
Frequently asked questions
- Does this tool handle both seconds and milliseconds?
- Yes. Values around 10 digits are treated as seconds and 13-digit values as milliseconds, and the detected unit is shown so you can verify.
- What timezone are the results in?
- You get the time in your browser's local timezone, in UTC, as an ISO 8601 string, and as a relative description like "3 hours ago".
- What is a Unix timestamp?
- The number of seconds (or milliseconds) since 1 January 1970 00:00:00 UTC, ignoring leap seconds. It is the standard way to store points in time in databases, logs and APIs.
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