Unix Timestamp Converter
Convert Unix seconds to a date or a local date-time to Unix time.
Results are provided for general informational use. Verify important financial, health or legal figures before relying on them.
About this Unix Timestamp Converter
The Unix Timestamp Converter works with Unix time measured in seconds since 00:00:00 UTC on 1 January 1970. It can translate a numeric timestamp into readable local and ISO dates or turn a selected local date-time into Unix seconds.
For related tasks, try Date Difference Calculator, Time Zone Offset Converter or Day of Year Calculator.
How to use it
- Enter a Unix timestamp or choose a date and time.
- Select the direction of conversion.
- Review the timestamp, local rendering and ISO representation.
Practical example
Unix timestamp 0 represents 1 January 1970 at 00:00:00 UTC. A later timestamp increases by one for each elapsed second.
Frequently asked questions
Are timestamps shown in seconds or milliseconds?
This tool uses seconds.
Why can local time differ from ISO time?
The ISO result is UTC, while the local display uses your browser’s local timezone.
Can timestamps represent dates before 1970?
Many systems support negative Unix timestamps, although compatibility varies.
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