Unix Timestamp Converter
About the Unix Timestamp Converter
Log files speak in ten-digit seconds since 1970, JavaScript APIs return thirteen-digit milliseconds, and support engineers need both human-readable dates and raw integers without opening a terminal. This Unix timestamp converter translates between epoch values and local date-times in both directions, with toggles for millisecond input and UTC reference display. Paste a timestamp from Splunk, MongoDB, or a JWT claim, convert to a readable instant, or pick a date-time and generate the epoch value your API expects. A Use current time shortcut captures now for quick correlation with live incidents.
How to use it
- For timestamp to date: paste the number and check Milliseconds if needed.
- Click Timestamp -> Date to see local and optional UTC breakdown.
- For date to timestamp: set the datetime picker value.
- Click Date -> Timestamp to generate seconds or milliseconds.
- Use Use current time to snapshot now for log correlation.
- Copy results into tickets, queries, or code comments.
Good to know
Results are calendar math from the dates you enter. Business-day tools skip weekends when they say so. They do not know local holidays unless the page says they do.
Frequently asked questions
Is the Unix Timestamp Converter free?
Yes. You can use it in your browser with no account and no download.
What is a Unix timestamp?
Seconds (or milliseconds) since 1 January 1970 00:00:00 UTC, omitting leap seconds in common software practice.
When should I enable milliseconds?
For 13-digit values from JavaScript, MongoDB BSON dates, or other ms-precision sources.
Does Show UTC change the conversion?
It adds a UTC display line; local interpretation still follows your browser zone.
How is this different from epoch-converter?
Unix timestamp adds millisecond toggle, UTC display, and current-time shortcut; epoch-converter focuses on seconds pairs.
Related
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