Timestamp Converter
Convert timestamp and date.
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Batch timestamp/date convert · One-click export download
Batch convert (Pro)
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About
Convert Unix timestamps (seconds or milliseconds) to human-readable dates and back. Perfect for debugging log lines, API fields, database records, and cache TTL calculations. Display uses your browser’s local timezone.
Use cases
- Convert a log timestamp to local time to correlate events across services.
- Generate a timestamp for an API request parameter or test data.
- Quickly verify whether a value is seconds vs milliseconds.
Common pitfalls
- Mixing seconds and milliseconds is the #1 cause of “wrong date” bugs.
- Logs may be UTC while your browser displays local time; account for timezone offsets.
- Some systems store timestamps as strings—watch for accidental parsing issues.
Examples
Input
1710000000
Output
2024-03-09 22:40:00 (example)
FAQ
Seconds or milliseconds?
10 digits is typically seconds; 13 digits is typically milliseconds. This tool attempts to auto-detect based on length.
What timezone is used?
Dates are shown in your browser’s local timezone.
Why does the time look “off” by hours?
That’s usually a timezone difference between UTC and local time. Confirm which timezone your logs are using.
Does this handle negative timestamps?
Negative timestamps represent dates before 1970-01-01 (Unix epoch). Support depends on browser Date handling.
Limitations
- Displayed time is local timezone; if you need UTC, interpret accordingly.
- Ambiguous inputs (e.g. 11–12 digits) may require manual verification.
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