What is a Unix timestamp?

The number of seconds (or milliseconds) since January 1, 1970 00:00:00 UTC — the Unix epoch. Used widely in programming and databases.

What is the Year 2038 problem?

32-bit signed Unix timestamps overflow on 2038-01-19 03:14:07 UTC. Modern systems use 64-bit timestamps, which won't overflow for ~292 billion years.

Unix Timestamp Converter

Date & Time· 10 tools

Free Unix timestamp converter. Paste a timestamp (seconds or milliseconds) to get a human date — or pick a date to get the timestamp. Supports UTC and local time display.

Current Unix timestamp

—

Timestamp → Date

Enter a Unix timestamp to decode it

Date → Timestamp

Pick a date to get its Unix timestamp

Frequently Asked Questions

References

Seconds Since the Epoch — POSIX spec — The Open Group
Date — MDN JavaScript reference — MDN Web Docs

Related Tools

Timezone Converter
Convert a date and time between any two IANA timezones with DST handling built in.
Working Days Calculator
Count business days (Mon-Fri) between two dates, or add/subtract working days from a start date.
Day of the Week Calculator
Find what day of the week any date in history or the future falls on — plus week number and day-of-year.

Frequently Asked Questions

References and sources

Related Tools