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.
00:00:00
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
fifi 2021-04-12 08:26:45

This is great! I wanted to know how long is each of my school periods and this helped!

B 2021-03-29 22:06:12

3/15 + 7/30 =
help please

Jake 2021-03-29 08:01:54

Hi I am an engineer this site helps me with time

rick 2021-03-26 11:10:36

Hi I am rick I like this time site it helps me in office

Lin 2021-03-25 11:05:38

Hi I love this site I told it to my sis and she loved it and I loved it too!

Fio 2021-03-23 22:46:31

i love this site alot it helps me with counting and school

Lia 2021-03-23 11:00:44

I love the site it helps me with time

Avanthika 2021-03-18 19:58:01

I enjoy this app so much! It assists me to estimate how much more time is left, etc. etc

bella 2021-03-18 07:29:26

i like it but what if we needed to see elapsed time what would we do

Mikey 2021-03-15 12:39:31

I Love this calculation site

Edita 2021-03-10 20:11:44

HI everyone imagine your zoom start in 9:45 and done's your zoom is in 10:10 have many minutes does your zoom going you no have many 25 minutes because my zoom is starts and done's like this and i want to try and it works

The dream 2021-03-10 11:08:31

This is amazing it helps me with my meet I always check how many hours minutes and seconds are left

Disha 2021-03-02 02:57:29

I was really thank to. This app bcs. I learn very much about time........
I think that this app will be helpful for me in future.....

TTV 2021-02-09 00:06:01

I think Am & Pm is needed cause at some point the tr. could ask for thm
thts all i can give at this point

Grade 9

sofia 2021-01-22 09:09:45

this app really helps me with the time i have between classes and when lunch starts .

sofia, grade 8

saywha 2021-01-07 08:18:09

i think it is pretty good i am a student and i needed to know how long till i have to hop onto my zoom and it is very accurate

Coco 2020-12-21 07:36:20

This app helps a lot with my school work.

luca 2020-12-03 06:41:46

it helps with school a lot it is awesome

Sofi 2020-11-23 08:26:53

This app is perfect as it is. No need for an AM / PM option as time, in reality, is measured in intervals of 24. There are 24 time zones, which total 24 hours. Simple math will assist those in need to know AM/PM.
Add +12 to any time after 12:00 NOON and that will be military time.
Example: 1:00 PM is the same as 1:00 + 12:00 = 1300 hours (or, 1:00 PM).
For standard time - hours greater than 12:00 PM, do the reverse. Subtract the hour in question, by 12. Example: 1500 can be calculated by subtracting 1500 – 1200 = 300 or…, 15 – 12 = 3.
Lastly, if you need to know if AM or PM is a factor, just look out your window. If the sun is up and it is before 12:00 PM (Noon time), you’re in AM range. Not trying to be funny, but don’t see a reason for the reference for AM or PM.
I use this app to help calculate accurate hours worked while on the road. As a consultant, every minute is vital to charge and so accuracy here is helpful.
For those of you asking for AM & PM... there is no such thing as a 24-hour clock... and for the young person that suggested AM & PM in military time.. this is a 24-hour clock.. and that IS MILITARY TIME. Times in the morning are preceded by a “0,” for PM after 12:00 noon... add 12 hours to the time... for example, 1:00 PM is now 1300... no colons.

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)
Love,
Sofi, 5th Grade

Ella 2020-11-20 08:48:33

I really like this ad i am in class right know and wanted to know how much longer it was going to be. This really helped me out hopefully I don't get caught though wish me luck. Thanks

Swara 2020-11-05 18:37:58

Brilliant and helpful in my studies

liv 2020-11-02 12:43:06

I like this app, Because it helps me know hw much time I have in class. And I usually am desperate to know. 9/10 Recommend. Also, you can use it to tell how much time you can sleep. Some people have times to wake up, and don't have alarm clocks, but they have timers. So they need to know how much time until they wake up. This is why it is helpful.

Jochenius 2020-10-30 08:30:26

Military time? While that in itself is somewhat true, most of the world outside a handful of countries use the 24-hour clock predominantly. Being a 12 to 24 time frame convert, this is my opinion only, it is definitely easier to differentiate the AM/PM. Even so that most, if not all, federal agencies in the US prefer to utilize it.

I 2020-10-28 09:16:18

I really like this app. It helps me a lot every day. Also, I don't think we need a 12 hour clock, because it teaches you how to read military time.

Joanna 2020-10-12 09:49:32

This app helps time go by faster when it goes by very slowly that's why i love this app

ethan 2020-10-06 16:11:57

this helped me alot on my work today

Rachel 2020-09-13 07:11:30

LOVE IT! leave it as it is. People should lesen military time.

Dave 2020-08-26 05:22:27

Love it! Use it to calculate my working day :)

LCY 2020-06-21 00:08:24

I love this!

FSJGCN 2020-05-28 01:49:55

I think it is great and everything but please make an option of AM and PM.

n 2020-05-11 09:30:20

ADD AM AND PM PLZ

GIGI 2020-05-05 08:34:32

Thanks for it there should be a subtracting one too

Free Willy 2020-04-29 08:17:56

awesome, really helpful for time question on homework pages. UwU :)

Limaxaasia 2020-04-24 00:33:45

Good, but there should be a section where you choose between a 12-hour clock and a 24-hour clock.

Lyndsay Witcher 2020-04-20 03:41:04

This was very helpful.I love it!

Victor V 2020-03-10 21:48:45

This app is perfect as it is. No need for and AM / PM option as time in reality is measured in interval of 24. There are 24 time zones, which total 24 hours. Simple math will assist those in need to know AM/PM.
Add +12 to any time after 12:00 NOON and that will be military time.
Example: 1:00 PM is the same as 1:00 + 12:00 = 1300 hours (or, 1:00 PM).
For standard time - hours greater than 12:00 PM, do the reverse. Subtract the hour in question, by 12. Example: 1500 can be calculated by subtracting 1500 – 1200 = 300 or…, 15 – 12 = 3.
Lastly, if you need to know if AM or PM is a factor, just look out your window. If the sun is up and it is before 12:00 PM (Noon time), you’re in AM range. Not trying to be funny, but don’t see a reason for the reference for AM or PM.
I use this app to help calculate accurate hours worked while on the road. As a consultant, every minute is vital to charge and so accuracy here is helpful.

Sierra Meeks 2020-03-10 08:47:37

I love this website because you can learn about time.

Miri 2020-03-09 09:52:20

Maybe add a 12 hour option? I’m seeing a lot of peeps who don’t understand military/24-hour time.

Corry 2020-03-07 14:11:22

You guys are saying add am/pm, use military time which has been explained in the thread constantly.

super 2020-03-03 08:58:56

add am and pm and military time

Unknown 2020-02-02 05:37:30

Add plz am and pm

j 2019-12-17 13:58:31

does not need am and pm for example if you work 8 am to 5 pm just put the starting time as 8 and the ending time as 17. it works just fine.

Felix 2019-12-13 10:44:44

Guys, it's in 24 hr time clock. That means 1 pm is 13, 2 = 14, 3 = 15, 4 = 16, 5 = 17, So on so forth. They are not going to add a am pm option because it's not broke so why fix it

Me 2019-11-15 20:34:12

For those of you asking for AM & PM... there is no such thing on a 24 hour clock... and for the young person that suggested AM & PM in military time.. this is a 24 hour clock.. and that IS MILITARY TIME. Times in the morning are preceded by a “0,” for PM after 12:00 noon... add 12 hours to the time... for example 1:00 PM is now 1300... no colons. ;)

Afraz 2019-11-05 19:55:37

Why can't you add YEAR, MONTH and DAYS ? Afraz grade 3

Sierra Mango 2019-10-17 03:33:29

I love it. I am in year 8 and this website helped me a lot in my homework. the best website ever!!! :)

Robin 2019-07-25 04:12:01

I love this calculator! Loomed all over the Net and this was exactly what I wanted :)

Sam 2019-06-19 15:48:17

Please add AM and PM as an option

HARI 2019-05-17 05:23:42

Pls add the one more option additional hours say

Example time in 10.05 a.m, 8 hours duty need to complete Put 8 automatically time shows completed hours need to work area

Monkey 2019-05-15 17:13:43

Please make it with an option of AM. or PM. it is something that would be very helpful for a lot of people

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