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Hours from now calculator

Add any number of hours to the current time — or to a time you choose — and see the result on your own clock, with the day it lands on.

1 to 168 hours (up to a week).

Start from

Your result appears here, worked out in your own time zone.

Each one opens its own page. Times are shown for your time zone and update every minute.

How it's worked out

We add the hours to this exact moment and read the result on your device's clock, in your time zone. Because real elapsed time is added, daylight saving changes are handled: 3 hours after 11:30 PM on the night the clocks go back is 1:30 AM, not 2:30 AM.

Everything is calculated in your browser from your device's clock, so the answer is right wherever you are. Without JavaScript, the calculator opens the page for the number of hours you enter.

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Frequently asked questions

How do you work out the time N hours from now?

We take the current moment, add the hours, and show the result on your device's clock in your own time zone. It updates every minute while the page is open.

What happens if the clocks change in between?

The answer follows real elapsed time. If the clocks go back an hour overnight, 3 hours after 11:30 PM is 1:30 AM rather than 2:30 AM; if they spring forward, it's 3:30 AM. We point it out whenever a change falls inside your span.

Why does the calculator stop at 168 hours?

168 hours is exactly one week. For longer spans it's easier to count in days — try the days-from-today calculator instead.

Learn more

If the next clock change falls inside your time span, the answer shifts by an hour. See when daylight saving time starts and ends.