Timestamp Converter

Switch between timestamp-to-date and date-to-timestamp conversion on one screen.

Supports both seconds and milliseconds.

Shows ISO, UTC, and Asia/Seoul time.

Unix timestamp input

1710000000

10 digits are treated as seconds, 13 digits as milliseconds.

Converted

Enter a Unix timestamp or date/time to convert.

Conversion result

Unix seconds

1710000000

Unix milliseconds

1710000000000

ISO

2024-03-09T16:00:00.000Z

UTC

Sat, 09 Mar 2024 16:00:00 GMT

KST

2024. 3. 10. 오전 1:00:00

Timestamp → date conversion

Date/time → timestamp conversion

See ISO / UTC / KST together

Can I paste both 10-digit and 13-digit timestamps?

Yes. 10 digits are treated as seconds and 13 digits as milliseconds.

Which time zones are shown?

The result includes ISO, UTC, and Asia/Seoul time.