Convert Unix timestamps and dates with automatic seconds/milliseconds detection, batch conversion, multiple formats, and time-zone comparison.
The current local time broken down from year to milliseconds, refreshed with the header timestamp.
Auto mode detects numeric timestamps by length and converts date strings back to timestamps.
Shows the converted time across time zones; follows the current time when no input is provided.
| Time zone | Identifier | Local time |
|---|
One timestamp per line (11 or fewer digits means seconds; 12 or more means milliseconds) or a date string.
Enter a timestamp or date, select seconds or milliseconds, and compare the result across time zones.
Unix timestamps count from the UTC epoch. Seconds and milliseconds use different units; local date strings also depend on a time zone. Prefer an explicit ISO date with an offset.