Time Ago Calculator

Both directions

Pick a date and time and the tool prints the relative phrase, ticking on its own as the clock moves. Or type the phrase instead — “3 hours ago”, “in 2 weeks”, “-90m”, “1 day 3 hours ago” — and it works out which moment that is. Paste an epoch timestamp or an ISO 8601 string into the same box and it reads that too, which is what you actually have when the question came from a log line.

Every form of the same moment

Whichever way you gave it, the answer appears as the phrase, the local time in your own zone, the UTC timestamp, and Unix seconds — each with its own copy button. That is the conversion that used to mean opening a second tool: a log line is in UTC or epoch, and the question is almost always how long ago that was in your own day. The picker takes seconds too, not just minutes.

How the phrase is read

Direction comes from the words: “ago” or “before” for the past, “in”, “from now” or “later” for the future, and a leading minus or plus overrides either. A phrase with no direction at all is read as the past, which is what a bare “3 hours” next to a timestamp means everywhere it appears. Units can be written out or shortened; m is minutes and mo is months, the convention every log format uses. Months and years move by the calendar rather than by an average length, so a month before 31 March is the end of February.