Unix Timestamp Converter
Convert Unix timestamps in seconds or milliseconds to dates and back, with local time, UTC, and ISO 8601.
Timestamp → date
Date → timestamp
Everything is processed locally in your browser and never uploaded.
How to use
- Timestamps are detected automatically: up to 10 digits are seconds, longer values are milliseconds.
- Pick a date and time to get the matching timestamps in seconds and milliseconds.
- Local time uses your device's current time zone.
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