Dayvilo

Time Calculator

Add or subtract hours and minutes from a time.

Operation

How to add time to a start time

Choose your start time, keep the operation on Add, and enter the number of hours and minutes to move forward. Dayvilo shows the resulting clock time and tells you if it lands on the next day. For example, 10:30 PM plus 3 hours is 1:30 AM the next day.

How to subtract time

Set the operation to Subtract to count backward from your start time. If the result moves before midnight, Dayvilo notes that it falls on the previous day, so you always know which day the time belongs to.

Crossing midnight

Adding or subtracting enough time can push the result past midnight in either direction. Dayvilo wraps the clock automatically and labels the result as the next or previous day, including cases that span more than 24 hours.

Frequently Asked Questions

How do I add hours and minutes to a time?

Pick a start time, keep the operation on Add, and enter the hours and minutes to move forward. Dayvilo shows the new time instantly and notes when it lands on the next day.

What happens when the result crosses midnight?

The clock wraps automatically. If a result moves past midnight, Dayvilo labels it as the next day; if it moves before midnight when subtracting, it is labeled the previous day.

Can I add more than 24 hours?

Yes. You can enter any number of hours and minutes. Dayvilo reports how many days forward or back the result lands, such as 2 days later.

What time format does the calculator use?

The picker uses your device's local format, while the result is shown on a 12-hour clock with AM and PM so it reads clearly for everyone.