Time Calculator

Please enter the time values; hours, minutes and seconds to add or subtract time.

Please select starting time and
add/subtract hours, minutes, seconds to calculate time.

About Time Calculator

Time calculator can add or subtract hours, minutes, seconds to the starting time you've entered. Calculated time result will be shown on the right box as total days, hours, minutes and seconds. Also the clock time will be calculated and listed below the time result. You can choose the time calculation operation to add or subtract on the form above. Calculation will be performed just after the operation selected. You can increase or descrease the hours, minutes and seconds value of time by your keyboard up and down keys. Now button will set the starting time to the current time. And the clear button resets the time inputs.

This is the webpage where our online Time Calculator is presented. It is a great and effective online tool to calculate how much time left till a certain moment of time, or calculate the exact duration between two specified points in time. This online Time Calculator is very easy to use and can be of a great help to anyone who needs to make this type of calculation related to scientific work, studies, some daily activities, and so on. There is also some very useful information about time measurement units and the specifics of their conversions between each other.

Examples for Time Calculator

DaysHoursMinutesSeconds
2 h15 min50 sec
+0 h25 min20 sec
=2 h41 min10 sec
DaysHoursMinutesSeconds
5 h45 min10 sec
+21 h34 min55 sec
=1 day3 h20 min5 sec

Add Hours Minutes Seconds to Time Calculation

On the following time calculation steps, we show how to add time in seconds.

Let's say starting time is 2:15:30
Add 4:50:15

1 hour = 60 × 60 seconds
1 minute = 60 seconds

Calculating starting time in seconds
2:15:30
= (2×60×60 sec) + (15×60 sec) + 30 sec
= (7200 sec) + (900 sec) + 30 sec
= 8130 seconds

To add 4:50:15 to starting time
We calculate seconds too
4:50:15
= (4×60×60 sec) + (50×60 sec) + 15 sec
= (14400 sec) + (3000 sec) + 15 sec
= 17415 seconds

Now let's add starting seconds
= 8130 seconds + 17415 seconds
= 25545 seconds

Calculating days
1 day = 24 hours
1 day = 24×60×60 seconds
1 day = 86400 seconds

We got 25545 seconds
total days = 25545 ÷ 86400
total days = 0

Calculating hours
We got 25545 seconds
total hours = 25545 sec ÷ (60×60 sec)
total hours = 7 hours

We have left
25545 seconds - (7×60×60) sec
= 25545 - 25200 sec
= 345 seconds

Calculating minutes
total minutes = 345 ÷ 60
total minutes = 5 minutes

We have left
= 345 - (5 × 60) seconds
= 45 seconds

So the result is
  2:15:30
+ 4:50:15
-------------
  7:05:45

Subtract Hours Minutes Seconds from Time

On the following time calculation steps, we show how to subtract time in seconds.

Let's say starting time is 2:15:30
Subtract 0:50:15

1 hour = 60 × 60 seconds
1 minute = 60 seconds

Calculating starting time in seconds
2:15:30
= (2×60×60 sec) + (15×60 sec) + 30 sec
= (7200 sec) + (900 sec) + 30 sec
= 8130 seconds

To subtract 0:50:15 from starting time
We calculate seconds too
0:50:15
= (50×60 sec) + 15 sec
= (3000 sec) + 15 sec
= 3015 seconds

Now let's subtract from starting seconds
= 8130 seconds - 3015 seconds
= 5115 seconds

Calculating days
1 day = 24 hours
1 day = 24×60×60 seconds
1 day = 86400 seconds

We got 5115 seconds
total days = 5115 ÷ 86400
total days = 0

Calculating hours
We got 5115 seconds
total hours = 5115 sec ÷ (60×60 sec)
total hours = 1 hour

We have left
5115 seconds - (1×60×60) sec
= 5115 - 3600 sec
= 1515 seconds

Calculating minutes
total minutes = 1515 ÷ 60
total minutes = 25 minutes

We have left
= 1515 - (25 × 60) seconds
= 15 seconds

So the result is
  2:15:30
- 0:50:15
-------------
  1:25:15
Recent Comments
Spodiman 2022-05-21 01:07:15

This is great. I used it for "research" before a quiz and I got 100 :)

Kittykelly 2022-05-19 18:32:50

It makes me understand more when I have homework to do thank :3

Liliana arizmendi 2022-05-19 11:17:54

I love it it helps me in class and its a good at clock and it doesn't say lies because I use it on one of my programs and the answer is correct I know that kinda cheating but it's a good app to learn how to add the time and hours and it's a great application.

A person 2022-05-17 19:42:15

It's fine.. It helped me figure out how much time until an after school activity was over!

NOYB 2022-05-16 20:15:22

It really helps out I used it to verify my work

adrian 2022-05-07 13:38:31

hello I think this is the best time calculator of all that I have tried

a guy 2022-04-29 00:43:28

this app helps a lot in time stuff

Blossom 2022-04-26 14:33:13

l am in love with this l love it

jose 2022-04-18 23:46:49

this help me a lot on my homework

Arianna 2022-04-15 01:39:28

It’s ok i guess. I helps a little with my IXL.

Ariana G 2022-04-04 21:22:49

This app helps me all the time when I do my homework

Noah 2022-03-28 23:26:30

i like this app because it helps with time

Charlie Brown 2022-03-15 14:52:03

This site was of great help to me; however, it would also be of great help if there was a function that enabled you to convert days to hours, hours to minutes, etc

Connor 2022-03-10 17:55:05

So if 1second=1000milliseconds and 1min=60secs and 1hr=60×60secs (3600secs) so 2hrs must be 7200secs

Teacher 2022-03-09 16:51:49

Wonderful app! Helps my student when they are stuck.

mahdi 2022-03-03 19:22:20

i got confused at the start then it helped me alot.

brayden 2022-02-22 19:02:43

this is very helpful app it gave me a 100% on a test

H 2022-02-14 03:20:44

Cool app :)

Bob 2022-02-12 00:16:06

The best

Denver 2022-02-10 06:07:13

This app helps, so it is the Best App Ever.

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