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Unix Timestamp Converter
Convert Unix timestamps in seconds or milliseconds into UTC or local time and convert an ISO datetime into epoch values.
✓ Free to use✓ Runs locally✓ No account needed
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Enter the values below to calculate or convert.
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Using the unix timestamp converter
Enter a Unix timestamp or an ISO 8601 datetime with timezone. UTC results are unambiguous; local output follows your device timezone.
Real-world example
Example: timestamp 0 represents 1970-01-01 00:00:00 UTC.
Good to know
Unix timestamps are timezone-independent instants. Do not confuse seconds and milliseconds; milliseconds are typically thirteen digits today.
This tool is a planning aid, not a substitute for verifying values in vendor documentation or production configurations.