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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 10,000 hours (about 14 months).

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.

How many hours can I add?

Up to 10,000 hours, about 14 months. For spans of a day or more the result also shows the length in days and weeks; 1,000 hours, for example, is 41 days and 16 hours. Each number from 1 to 168 hours (one week) also has its own page.

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.

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