Timestamp Converter

Convert between Unix timestamps and date/time online, with 10-digit seconds and 13-digit milliseconds, shown in your local time zone.

Current time

Timestamp → Date and time

Timestamp (seconds or milliseconds)

Timestamp unit

Seconds (10 digits) Milliseconds (13 digits)

Converted result

Date and time → Timestamp

Choose date and time

Or enter manually (YYYY-MM-DD HH:mm:ss)

Timestamp result

Timestamp result (milliseconds)

How to use the timestamp converter

Enter a 10-digit (seconds) or 13-digit (milliseconds) Unix timestamp to see the date, or pick/enter a date/time to get both second and millisecond timestamps. Results use your device local time zone.

Unix timestamp:Seconds or milliseconds since 1970-01-01 00:00:00 UTC
10-digit timestamp:Usually second precision, e.g. 1640995200
13-digit timestamp:Usually millisecond precision, e.g. 1640995200000
Time zone:The same timestamp is the same instant; local clock time differs by region

FAQ

What's the difference between 10 and 13 digits?

10 digits usually means seconds since Epoch; 13 digits usually means milliseconds — a 1000× difference.

How is the time zone handled?

Timestamps have no time zone. This tool shows dates in your browser device local zone, so clock time can differ by region.

Is my data uploaded?

No. Date parsing and timestamp math all run in your current browser.