Timestamp conversion
Unix timestamp (seconds)Millisecond timestampLocal time-UTC / ISO
Timestamp conversion
Convert between timestamp and datetime
Browser local processingInputs and files are not uploaded to our serverData processing
Instructions
Convert between timestamps and dates
Use for debugging logs, API timestamp fields, or timezone issues.
1Enter timestamp or date
2Select seconds, milliseconds, or current time
3Copy conversion result
After completionGet human-readable date, or program-usable timestamp.Enter a Time First
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Check seconds, milliseconds and time zones
Logs commonly record Unix timestamps in seconds or milliseconds. A timestamp represents an instant without a display time zone, so local and UTC dates can differ.
An example to check
Input and settings
Enter 1704067200 or 1704067200000; the tool detects seconds or milliseconds automatically.Expected result
UTC: 2024-01-01T00:00:00.000ZBoth inputs should identify the same instant. In Beijing the local time is 2024-01-01 08:00. Normalize units before converting a batch.
Scope and limitations
- Absolute values below 10^12 are interpreted as seconds; others as milliseconds. Early millisecond or distant second timestamps may be misclassified. Check the date against the original unit.
- A date without a time zone may be interpreted in the browser local zone. Prefer ISO dates with Z or an explicit offset when exchanging data across regions.
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