Unix Timestamp & Time Zone Converter
Convert Unix timestamps, ISO 8601 values, and IANA time zones locally in your browser. No network calls, no storage, no URL writes.
- Current Unix seconds
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- Current Unix milliseconds
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Timestamp → Date
Enter a Unix timestamp (seconds, milliseconds, microseconds, or nanoseconds) or an ISO 8601 / RFC 3339 string with offset.
INVALID_DATETIME: Empty input.
Additional IANA zones
Date → Timestamp
Enter a wall-clock datetime without offset and choose the IANA time zone it belongs to. DST overlap shows Earlier and Later; DST gap is rejected.