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.

Time Calculator

Examples for Time Calculator

2 h15 min50 sec
+0 h25 min20 sec
=2 h41 min10 sec
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
= (2×60×60 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
= (4×60×60 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
+ 4:50:15

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
= (2×60×60 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
= (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
- 0:50:15

We also recommend Metric units converter for all other metric units conversions.

Recent Comments
ur mom 2018-12-07 17:14:14

I came here, so I wouldn't have to do the math, and yet, that's precisely what it wanted me to do. And Y'all like that. weird.

James 2018-11-14 12:13:19

Great site, to calculate my login and logout details, gives info in a fraction of seconds. it helps me the calculate the project start and End Time. Highly Recommended for those who concentrate on time and finish their works, Rather do not know how much time they take to complete a task

ENOSY 2018-11-01 05:17:50

Helps me to calculate the daily workers' time according to the hours worked.

O 2018-10-25 09:08:40

If you need to calculate from a starting/finishing time to calculate from specific times of days use the 24 hour system (hours from midnight, so 12mindnight is 0hours and 1pm would be 13hours, 2pm is 14 hours and so on.) It's easier than trying to use the amount of time it will take to get somewhere or do something if you have a set deadline. Say you need to be done/somewhere by 4pm and you want to know when to start getting ready. Find out how long it takes to get ready for/do said thing and subtract it from the 24 hour format of 3pm(15hours) then you'll have your work done for you easier than trying to use the other time format.

Larhzie Prex 2018-09-19 11:22:47

This has helped me. I was actually studying and I suddenly forgot how to calculate it but thanks to this, I had a glance through it and I remembered everything. But would be great if it had an app

DHYEY 2018-09-18 07:48:04

Wow,it helped me a lot, Please make an Android or IOS app for this.


Nitesh Kashaudhan 2018-09-03 10:46:47

Awesome App helps a lot in my office time breaks and in out calculations. Thanks to developer. LOved IT

Evonne 2018-08-25 11:01:18

This app helps me when I go on break at work.

Niggarious Manning 2018-08-19 21:28:37

we want more slots to put like individual time slots in t add up. im trying to add up all the song time duration in album to see how long the is in total.

SundancePi 2018-08-19 16:52:41

The best time app I have found so far... I need search no further.

Horse lover 2018-08-01 05:19:40

Thank-you so much for this app! Having some neurological problems has caused me to have a great deal of difficulty now in handling time problems. This has made it possible for me to function much more normally. Thank-you!!!!

Shiva Sahani 2018-07-28 23:17:33

Thanks is a good app it is helping me with my work. fell happy

doogie89 2018-07-10 11:26:32

This is a fantastic tool. Being a supervisor, it greatly helps with assuring my employees times are correct and is helpful when needing to find out how much time an employee has missed.

Akira 2018-06-26 07:53:03

nice time claculator it gives you the time that you need and how many seconds,hours,and minutes

CK 2018-06-16 03:37:56

Nice. Have been looking for something that can convert min to hours and min. Say, 118 min to have it show me 1 hr 58 min. On some sites, movie times are only shown in min, but I want the hours and min. So, thank you for this.

MALAV 2018-06-13 22:23:47

Wow,it helped me a lot, Please make an Android or IOS app for this.

REID 2018-06-12 02:22:59

Please make an android app for this.

Rahul Arya 2018-06-03 10:22:53

very very needful website for every BPO employee

Pogba 2018-05-21 12:01:23

You should get a app for it and it helps me with my time

Library 2018-05-20 09:14:42

This app helps us to tell students when they need to be finished with their tests

DM 2018-05-11 06:09:57

Lame! I need calculator that can convert xxxxxx seconds into years/moths/days/hours, or vice versa.

Isha 2018-05-04 00:07:44

Very unique and extraordinary one

uberoperator 2018-04-27 09:52:12

pretty good but it should have an easier interface

Tresia williams 2018-04-19 16:25:31

Thanks is a good app it is helping me with my homework.

Hedley 2018-04-13 15:21:41

This site help me a lot.. Great work!! Keep it up.

Banana 2018-04-12 17:12:26

Be more clear. Add more types of seconds like up to auto or nano seconds :)

Robert H 2018-03-29 09:57:02

I use it to calculate staff time spent in CRM. Comes in handily! Thank you!

person 2018-03-28 14:48:31

you can not do army time not everyone knows that

Vijay 2018-03-25 07:47:09


Joshua 2018-03-25 07:08:25


Joshua 2018-03-25 07:07:00

I love Tommy calculator it helps me with stuff even my homework

Ashutosh Saxena 2018-03-25 03:48:13

it's really help ful for me like calculate the login hours means how many time spend in job really good to yaar

soundar 2018-03-21 05:25:54

very useful.

Kaliya 2018-03-20 11:19:57

This app really helps me with my math worksheet

Anu 2018-03-13 04:24:06

It is very help full i like it

Maddie 2018-03-12 15:38:49

I think this is a great and efficent tool to help with school and just to solve simple problems that you just can't wotk out in your head. But the only thing that this calculator needs is am and p option or else it gives you the wrong time difference or sum.

Mc king 2018-03-12 12:39:11

Wow I love this time calculator

Sugar 2018-03-07 08:11:00

I agree with parvind

Mary 2018-03-06 11:37:38

I used it for my mathematics homework

Mary 2018-03-06 11:35:20

Wow,it helped me a lot

Dennis 2018-03-01 11:40:54

For anyone who has an obsession with keeping time, this tool is an absolute necessity! Your exact breakdown of the calculations is especially helpful when I'm at work, and I want to make the most out of my time. Now I can keep track of exactly how long it takes to get help from , so I'm not wasting my time waiting for answers that I could spend less time finding on my own! Every second certainly counts!

julia vallejos 2018-02-27 11:10:39

this is the best love it

20 2018-02-27 10:38:27

the best ever

Eileen Stanton 2018-02-26 08:43:48

good calculator for time helps me in school.

es 2018-02-26 08:43:14


Jasmine 2018-02-24 05:18:51

Convert to seconds:-
12 3/4

Pleeeeeeeeeeeeeeeeeeeeeeeeeeease tell me the answer

Zuma 2018-02-21 15:58:32

Ans ca ahhhhhhhaxSdq 013 456-7910 right get on the weather though 013 456-7910 right get on the weather though traffic and weather together every 10:00 on the eights

Paul 2018-02-17 14:32:26

Thanks. This did what I needed, but it would have been so much nicer if I could have just entered the time as 6:04 pm, for example, instead of having to break it up myself. Using Javascript, you could use the string function "split(":") to split the time into the separate boxes. You'd probably have to verify inputs, but you have to do that anyway.

parvind 2018-02-16 21:01:09

good! But it would be great if it allow adding multiple entries at the same time .

Susan W. 2018-02-14 18:46:21

Why don't you have an app?

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