Start with the value's unit and timezone
A Unix timestamp identifies an instant. To interpret it correctly, first confirm whether the source uses seconds or milliseconds, then choose the timezone used for display. This prevents the two most common conversion mistakes.
Quick conversion workflow
- Keep the original timestamp and identify its source field or API.
- Check whether it is seconds or milliseconds.
- Convert it and compare the result with a known event time in the correct timezone.
Tools and guides
Unix Timestamp Converter
Convert Unix timestamps and readable dates in either direction.
Timestamp Converter Guide
Use a safe workflow for API values, logs, and reports.
Seconds vs Milliseconds
Tell apart common 10-digit and 13-digit timestamp values.
Convert Unix Timestamp to Date
Read a machine timestamp as a date and time.
Convert Date to Unix Timestamp
Create a timestamp from a date, time, and timezone.
Timestamp and Time Zone Guide
Avoid confusing an instant with its local display time.