Time Duration Calculator

Please enter the first and second time values to calculate the time duration in hours, minutes and seconds.

: :
: :
Times in 24-hour clock.
Time duration format HH:MM:SS

About Time Difference Calculator

By using the Time Duration Calculator, one can easily find the actual time difference between two specific points in time (the starting time point and the end time point). In order to use this calculator, you should enter the values of both specific time points in hours, minutes, and seconds. The result will be displayed in absolute time value and standard time format (HH:MM:SS). At the bottom of the webpage you can find some time duration example chart, which can help you understand how this Time Duration Calculator actually works.

Now button will set the starting time to the current time. And the clear button resets the time inputs.

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Time Duration Examples

Starting TimeEnd TimeTime Duration
03:1021:4019 hours, 30 minutes
08:2309:281 hours, 5 minutes
05:2208:203 hours, 58 minutes
03:0808:195 hours, 11 minutes
14:4715:451 hours, 58 minutes
03:0417:4915 hours, 45 minutes
15:3322:447 hours, 11 minutes
16:4818:362 hours, 48 minutes
11:1521:4711 hours, 32 minutes
06:1119:3913 hours, 28 minutes
00:3711:3311 hours, 56 minutes
08:5716:598 hours, 2 minutes
Recent Comments
Roger 2018-01-12 00:03:19

Only works if the start time and end time are both in the same day.

Pow 2017-12-26 15:33:10

I love this website. It helped so much. Thank you*

faith grayson 2017-12-21 16:52:12

this website cant count at All

Smitty 2017-12-15 09:26:53

@Anon you need to convert to 24-hour time. Add 12 to anything pm.
1pm - 13:00
10:30pm - 22:30

Anon 2017-11-30 05:29:53

Is it possible to get a calculator for how long you sleep? I put in 10:30 to 6:00 but it showed me am to am time.

sarah 2017-11-28 08:43:11

really helped thanks

find 2017-11-24 18:58:56

find the interval from 3.45 to 2.45

Nel 2017-11-20 21:47:31

I needed so much help

Thank you

Albert 2017-11-14 21:01:19

I don't understand what this do, I need some help of this.

Thank you.

Sinco polo 2017-10-11 13:54:48

it awsome helps alot i got helped a bit to know in the middle of a video in youtube

Munya 2017-10-02 11:52:56

if I worked 5:20 until 10:40 how many hours is that

Isabel Jay Kalunga 2017-09-28 10:47:59

Is It Correct That;05:35pm -06:10pm Makes 36mints?..

Anna 2017-09-27 17:52:52

@ LALA "whhhattt??? in my high school we only get 30 min of lunch? -_- lol 11:50 till 12:20 some one said its 45 min but this calculator helped. thxx this is a good calculator, but u guys should add something to help with stuff like this for ex: if its 6:45 pm what time would it be in 55 min. something like that, otherwise great calc."

How can you say you have forty-FIVE minutes of lunch when at the first place there's nothing to be confused about. You might think it's 40 minutes but never 45 because its' 1150 not 1155! (obviously!)

awo 2017-09-25 17:21:38

thanks help a lot on mathletics

Lala 2017-09-22 11:49:43

whhhattt??? in my high school we only get 30 min of lunch? -_- lol 11:50 till 12:20 some one said its 45 min but this calculator helped. thxx this is a good calculator, but u guys should add something to help with stuff like this for ex: if its 6:45 pm what time would it be in 55 min. something like that, otherwise great calc.

Sam Bento 2017-09-18 09:38:47

I am trying to avoid hours after morning but an excel sheet calculate minutes with other time after days. thanks

Ryano 2017-09-15 01:29:37

Thanks helped me calculate how long in a school day. 9 hours :)

shahbaz 2017-09-07 06:34:41


Alisha 2017-07-11 19:54:25

Can you please add the option to also calculate time difference with days?

nike 2017-06-28 02:00:12

add feature to show end time calculated from given time + the duration

ex: what will be time after 45 minute right from 13:00:00 PM

Makeya 2017-06-10 20:17:36


bernie 2017-06-09 11:47:36

wow amazing

Zein124 2017-06-01 15:57:36

On the hours from now calculator, you should add a box for the date. For example, I play a game where bosses can be killed but they have hourly regens. As in, this enemy respawns every 75 hours. Clan member killed the enemy yesterday at 5PM. I can't calculate that since it ONLY calculates from the current time or a specific time of day, but not from a specific date. Please update.

ella 2017-05-17 15:54:46

love it

Marsha 2017-05-08 17:50:01

It help me with my homework and everything it gives me understanding and other

Jayslay 2017-05-04 14:55:35

Help with homework

Aderab 2017-05-03 02:25:05


Aliyah 2017-04-17 14:46:57

Trying to calculate hrs and minutes and second if it is 5:45 what would it be in 30 minutes

Bento 2017-03-14 09:20:46

Helpful calculator I like it

Colleen 2017-02-06 13:23:43

What is the formula used? I am trying to do this in an excel sheet. I have the military time of start and finish and need the number of hours and minutes for a task (actually about 400 of them!)

Sam 2017-01-24 02:26:12

If I wanted to log this on an excel sheet, how would I do this? so I could just type the times started and finished, to = my hours and minute worked that day.

for example

7.27 5.06 =
8.25 6.27 =

Conan 2016-10-29 04:33:15

That looks like a alarm clock that I made like something Bubble, Pencil, Ruby has to get excited about talking to me

Ravindra Mahto 2016-10-03 20:06:14

I want to calculate hour but I don't know how to calculate hour into hh:mm:ss, Can you help me ?please....

zfs 2016-09-18 10:44:37

how to calculate form 22:00 to 2:00(exsample) in the morning

Amber 2016-09-09 08:09:58

Does this not like hours after midnight? It's telling me there is 8:40:00 between 09:15 and 00:35. I was hoping this would be faster then doing all the math but not so far...

Simon 2016-09-05 07:19:32

Avoid, 00, always make them 8.01 or 16.01

Alana 2016-08-10 18:21:14

I am trying to calculate hrs during a shift to complete a report. from 8:00am-16:00pm but the formula is not working what other formulas can i use

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