Batch epoch converter
Paste log lines or CSV to turn every Unix timestamp into a readable date. Or paste dates to get their timestamps.
Example: paste your own log lines or CSV above.
Annotated
4 timestamps on 4 lines2026-10-09 web-1 login user=42 ts=1791554400 (2026-10-09T14:00:00Z)
{"event":"open","time":1791554523456 (2026-10-09T14:02:03.456Z),"msg_id":"a1791554523"}
kafka offset=88123 created=1791554400123456 (2026-10-09T14:00:00.123Z)
1791504000 (2026-10-09T00:00:00Z),delivered,newsletter.exampleHow it works
Logs, exports and APIs often store times as Unix timestamps: the seconds (or milliseconds) since 1 January 1970 UTC. This tool finds them in any text and shows the date next to each one, so you can read a log without converting numbers one at a time.
The unit comes from the number of digits: 10 digits are seconds, 13 milliseconds, 16 microseconds and 19 nanoseconds. That covers dates from 2001 to 2286. If your numbers use another unit, pick it above. Numbers inside words or IDs, like a1791554523 or order-1791554400, are skipped.
Dates to epochs goes the other way. Dates with an offset or a Z are exact. Dates without one are read in the time zone you pick, and a note tells you when a daylight saving change skips or repeats that time.
For a single value, use the epoch converter. To read a timestamp in another format, try the timestamp decoder.