Developer Tools•Free & Browser-Based
Timestamp Converter
Convert human-readable dates to Unix timestamps (seconds and milliseconds) and timestamps back to ISO 8601, UTC, and local date formats.
Total Duration
251 Days
Equivalent to 35 weeks and 6 days (approx. 8.2 months)
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What is the Free Online Timestamp Converter?
Unix time (or epoch time) tracks time as a running count of seconds that have elapsed since Thursday, 1 January 1970 00:00:00 UTC, ignoring leap seconds.
100% Client-Side Privacy: Calculations and data processing occur entirely in your local browser memory. Zero files or personal inputs are uploaded to our servers.
How to Use Timestamp Converter Online: Step-by-Step Guide
- 1To convert from epoch: enter a 10-digit (seconds) or 13-digit (milliseconds) timestamp.
- 2To convert to epoch: select a calendar date and time.
- 3View instantaneous conversions in UTC, Local Timezone, ISO 8601, and relative human format ("3 hours ago").
Pro Tips for Getting Accurate Results
- •A 10-digit number represents seconds; a 13-digit number represents milliseconds.
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