Time Adder Calculator

Created by Kenneth Alambra
Reviewed by Komal Rafay
Last updated: Sep 21, 2023

If you want to learn how to add times together quickly, this time adder calculator is for you. Read through this article to find out:

  • How to use this time adder calculator;
  • How to add times together; and
  • Some frequently asked sample questions.

Keep on reading to start adding times together.

How to use this time adder calculator

Using this time adder calculator doesn't take too much time at all. All you have to do is enter the time values you want to add together while following the following notes:

  1. First, choose the time unit of your time values.
  2. Then, enter their respective time values. You can add together up to 20 time values.
  3. Select your preferred units for your results.

It's that simple!

How to add times together

Adding times together is like adding other regular numbers. We just need to remember that we need 60 seconds to complete a minute, 60 minutes to complete an hour, 24 hours to make a full day, 7 days to make a week, and so on.

That means if we add time values in seconds that result in values greater than 60, we can already utilize the minutes unit. Or if we obtain a time value greater than 24 hours, we can already say that the time value is more than a day.

For example, adding 48 seconds and 37 seconds results in 85 seconds. But since 60 seconds of it is already a minute, we can subtract 60 seconds from 85 seconds to get a minute and a remainder of 25 seconds, giving us a total time value of 1 minute and 25 seconds.

The same thing applies to larger time units.

If you're into learning more about converting and adding times together, then you'll find the tools listed below informative and interesting:


How do I add seconds and hours?

To add, let's say, 4,560 seconds to 2 hours:

  1. First, convert 4,560 seconds to hours. Divide it by 3,600:

    4,560 / 3,600 = 1.2667 hours

  2. Any whole number in our quotient represents values in hours. In our example, we have 1 hour that we can add to 2 hours to get 3 hours.

  3. Then multiply any decimals by 3,600 to find the remaining seconds. In this case:

    0.2667 × 3,600 = 960 seconds

  4. We can also divide 960 seconds by 60 to have:

    960 seconds / 60 = 16 minutes

    Since there is no remainder, our final total time value is 3 hours and 16 minutes.

What time is it 45 minutes after 10:15?

It's 11 o'clock. Adding 45 minutes to the 15-minute part of the clock reading results in 60 minutes or 1 hour. That also means the minute-hand of a clock will already make a complete turn, which will cause the hour-hand to move precisely to the next hour. In this problem, that would be 11 o'clock.

Kenneth Alambra
Enter up to 20 values (new rows will appear)
Result's units
hours / minutes / seconds
= 0 h 0 min 0 s
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