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Timestamp converter

Convert Unix timestamps and date-times in both directions, UTC and local.

From a Unix timestamp

The unit is always explicit. 1718000000 seconds and 1718000000 milliseconds are different moments in time.

From a date and time

ISO 8601 works best. Without a timezone offset the value is read as your local time; with a Z suffix it is UTC. A date without a time (2024-06-10) is midnight UTC.

Unix seconds
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Unix milliseconds
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ISO 8601 (UTC)
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ISO 8601 (local)
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Readable (UTC)
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Readable (local)
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Timezone
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Limitations

Seconds and milliseconds are distinguished explicitly. Local time output depends on your device clock and timezone settings.

Privacy

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