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
Aaliyah .. 2018-12-02 19:50:40

Works so well for college hwk and weekly base planning. I hope they keep 24 hour time but also make a choice for 12 hr time for those who can't translate to 24 hr time.

Jim McCracken 2018-10-16 05:39:42

Why no date? what if I needed to calculate the time between 23:50 and 01:22, for instance? That's a simplistic example, but similar to my use case today.

Cathie 2018-09-28 10:42:12

You don't need AM and PM, convert anything after noon to a 24 hour clock. (ie) 1:00 pm =13:00 2:00pm =14:00 etc. I love this for making bell schedules at our school. Great tool!

Jacob 2018-09-09 03:50:55

I use it for my work to know exactly how long it takes for trucks to be unloaded, I also don’t understand how people don’t get 24hr time.. come on it’s easy..

Additions! 2018-09-05 06:06:32

Dude it would help a lot if you added AM and PM!

Jordan 2018-07-11 11:53:06

Great time saver for converting
Ups: quick, easy, free, clear
Downs: only 24+ method, no option for a break in the middle that you have to substitute from total of work
Other than that love the site would recommend it

Ethan 2018-06-26 18:04:39

Great calculator for my itineraries

name 2018-06-11 09:24:31

For those of you who don't know how to convert between standard to military follow this:

Standard -> military
If your time after 12:00pm, take that number then add twelve.
EX: 3:00pm is 1500 in military time (12+3)

Military -> standard
If your time is greater than 1200 take that number and subtract twelve.
EX: 2300 is 11:00pm in standard time (23-12)

no 2018-05-29 12:21:01

make pm and am

Echo 2018-05-20 12:04:15

Can you please add AM and PM and put an option for standard time? Otherwise this calculator is okay.

Gideon 2018-05-15 08:12:56

It helps me real helps me on my math. The time calculator helped me on my hard time and I want to use it again my Friends want to use it to, they think its good to, they want to use it more and more.

J K 2018-05-02 20:03:53

How do you calculate the end time for a movie that starts at 2:45 pm and takes 1 hour and 37 minutes?

Elssy 2018-04-21 04:19:38

Wow! this worked well. Another question pls. A meeting that started at 10·15am ended at 1·10pm. How long did it last?

Asya 2018-04-09 12:39:54

can you make pm and am

Jessica 2018-03-28 08:57:27

Use the 12 hour clock!!!!

Sarah 2018-03-24 03:14:38

it helped

Abigail 2018-03-18 09:46:31

Add "A.M" and, "P.M"! Also, do standered time instead of military time.

Arianna 2018-03-14 15:22:05

Jareline and Jackie went to brunch at 11:45am. If they left the at 1:12pm,How long did they spend eating at the restaurant?

Angelina 2018-03-10 16:01:30

this website needs updating and work. At the moment u can't count from am to pm and u can only change it to noon and now. That is annoying and a waste of time. silly.

Mc420mc6611 2018-02-22 21:15:04

Thanks came hand for work.

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!)

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