Timestamp Converter
Convert Unix timestamps to readable dates and back, entirely in your browser. Supports seconds and milliseconds, with local time and UTC shown side by side.
no server upload
Timestamp to date
Local (UTC)
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UTC
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Date to timestamp
Unix seconds
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Unix milliseconds
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ISO 8601 (UTC)
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▸Interpret as (optional)
Browser-based timestamp converter
Convert Unix timestamps to human-readable dates and convert dates back into timestamps, for debugging logs, API payloads, scheduled jobs, and analytics data.
Timestamps and dates are converted locally in your browser. Nothing you enter is uploaded to oddkit.
Common use cases
- Check what time a Unix timestamp in a log line or API response represents
- Convert a scheduled date and time into a timestamp for a cron job or API call
- Compare a timestamp across your local time zone, UTC, and another time zone
FAQ
Are my timestamps or dates uploaded to oddkit?
No. All parsing and formatting happens locally in your browser.
How does the tool know if a timestamp is in seconds or milliseconds?
By default it auto-detects based on magnitude: present-day second-based timestamps are around 10 digits, while millisecond-based timestamps are around 13 digits. You can also force seconds or milliseconds manually.
Can I see a timestamp in a time zone other than my own?
Yes. Use the compare time zone selector to see the same instant formatted in any supported IANA time zone alongside your local time and UTC.
Common conversions
Unix Timestamp to Date
Convert a Unix timestamp in seconds or milliseconds into a readable date and time, with the unit auto-detected.
Date to Unix Timestamp
Convert a date and time into a Unix timestamp for cron jobs, APIs, or database queries.
Seconds to Milliseconds
Convert a Unix timestamp between seconds and milliseconds, or force the unit manually instead of relying on auto-detection.
Timestamp to UTC
Convert a Unix timestamp or local date into UTC to remove time zone ambiguity from logs and APIs.
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