Time Calculator

Enter the date (and optionally the time) of the past event and click Calculate. The tool shows the elapsed time broken down from years all the way down to seconds, ticking live in real time.

Yes — use the time input to specify the exact hour and minute as well as the date. This is useful for tracking things like sobriety anniversaries, records, or the exact moment a baby was born.

Yes — you can enter dates hundreds of years in the past. For example, you could calculate how many days have passed since a historical event like the signing of a famous document or the birth of a notable figure.

The Days Counter calculates between two specific dates you choose. Time Since is focused on how long has elapsed from a past event up to right now, and updates live every second to reflect the current moment.

Yes — use the Share button to generate a link with your date pre-filled. Anyone who opens the link will see the same elapsed time, continuously updating from the original event date.

To work out how many hours it has been since a specific time — for example since 5pm yesterday or 8pm last night — enter that date and time above and read the "Total Hours" box. It counts the exact hours (and minutes and seconds) that have passed right up to this moment, updating live.

Enter the 1st of January of that year (e.g. 01/01/1983) to see how long it has been since that year — in years, months, days, and even total hours and seconds. Great for working out how many years have passed since a birth year, a wedding, or a memorable event.