Paste a Unix timestamp to see it as a date, or a date to see its Unix timestamp. The result updates as you type.
Now shows the current Unix time, ticking; copy it with 📋, or Convert it. The date and time picker fills in a date for you.
Several lines give a table with a row per line. Copy as table pastes it into a spreadsheet.
Timestamps
With Unit on Auto, a number is read by its length: 10 digits as seconds, 13 as milliseconds, 16 as microseconds, 19 as nanoseconds. Pick a unit to read every number in it.
Digits can be grouped (1,767,225,600, 1_767_225_600, 1 767 225 600). Negative numbers are before 1970, and seconds can have decimals (1767225600.5). Dates keep milliseconds; anything finer is left out.
Dates
Dates without a time zone (2026-07-14 09:30, 2026-07-14, 14/07/2026 9:30 PM, 14.07.2026) are read in the chosen Time zone. Dates with one (2026-07-14T09:30:00Z, +02:00, GMT) keep it, and other formats, like HTTP dates, are read by your browser. now works too.
In 14/07/2026 a part over 12 can only be the day. When both could be (05/07/2026), dots are read day first and slashes the way your browser writes dates, and the result says so.
Dates that don't exist, like February 30th, get an error. A time skipped when clocks go forward is read as the same time after the change, and a time that happens twice when clocks go back as the first; the result says so.
Every result is shown in UTC and in the chosen time zone (which is remembered): as ISO 8601, readable, and relative to now.
Logs
A line that isn't just a timestamp or a date, like ts=1767225600 event=purchase or "created_at": 1767225600123,, is searched for one: the first 10-, 13-, 16- or 19-digit number, or else the first ISO date. What was found is marked.
With several lines, Since previous shows the time from the line before, like +1 h 30 min.
Sharing
Copy share link copies a link to this page with the lines, unit and time zone in it, after a #. Whoever opens it sees the same result.
Unix Time Converter
Convert Unix timestamps to dates and dates to Unix timestamps, in UTC and any time zone. Seconds, milliseconds, microseconds and nanoseconds are told apart by their length.