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

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

Recent Comments
Julie 2016-12-09 16:26:43

Thank you for such a great website that can help with time. Much need and appreciated.

Julie 2016-12-09 16:25:23

@Graham=17min 15sec = 5 laps at 3min 27sec

Conan 2016-12-09 15:56:06

Well...
People chatting so much.
00:00 means 12pm.

Jax 2016-12-07 09:27:50

I used to this to see how many minutes of class I have left yes!!! Only 27 minutes my lucky number!!

Kare 2016-12-07 01:45:17

It works very nice!!!

DATJASONBOY 2016-12-02 20:22:23

This tool is great.

Vinicius 2016-12-02 19:45:38

Awesome! It helped me calculating the hours for my broadcasting show!

Random Guy 2016-12-02 17:24:11

This is awesome and accurate. Do you have an app for Android or IOS?

Harry 2016-12-01 10:58:28

Harry took 1hour of homework club

Matt 2016-12-01 08:43:26

This helped me add up my community service hours very helpful

Sean 2016-11-28 17:47:43

Helped me find 30 minutes past 9❤️❤️❤️❤️❤️!

Harley Quinn 2016-11-28 14:29:57

Omg thank you soooo much!!!! I cant explain how much this has helped me.

Lily 2016-11-23 12:55:17

This helped

Graham 2016-11-21 17:21:32

Need to multiply time please.
e.g. 5 laps at 3min 27sec per lap = ??
Need answer in min/secs and not decimal mins which Google does.

Janice 2016-11-15 16:35:09

will you ever come out with a mobile app? will be even more helpful

KFC 2016-11-13 19:50:26

I did pick plus 1 second and got 13 days 41 minutes and 40 seconds

Zara 2016-11-09 14:38:33

This is really helpful for stuff <3 <3

54321 2016-11-09 08:40:54

helped me find out when to order my food.

bugdg 2016-11-02 02:05:31

your the best ever I like it he or she but I need a number

John Rob 2016-10-30 03:55:54

PLEASE NOTE: This site needs Java enabled to work. Check your browser for java if you find the calculator does not give an answer.
With Safari 5.1.0 it did not ask if I wanted java which I had disabled.
This is the best calculator I have found. Does just what it says on the tin! :D

Conan 2016-10-29 13:46:05

omg I never get 6 soon but my birthday is... 29/12/2016

Time Calculator 2016-10-28 16:54:50

@Blake: we currently don't have a mobile app.
Thank you...

Blake 2016-10-28 09:08:47

Do you have a cell phone app for apple phones

Kelly 2016-10-27 09:57:11

I will like to know what time you are starting

Larencia 2016-10-27 09:56:32

I will like to know what time we are going to be posting this

Isaiah 2016-10-26 16:02:41

Um...yeah...let's just say that I had a random question and didn't use this for HW... :-) THIS IS AMAZING!!!!!!!!!!!!!!!!!!!!!!!

death 2016-10-24 05:04:00

its ashame that this cant be enjoyed after trump nukes hillary then the entire GOP in 2017

Moritz 2016-10-24 02:48:32

Thank you so much. That's exactly what I wanted to know.

Aj 2016-10-19 05:18:28

VERYYY HELPFUL FOR MY EXAM!!! Tnxx❤️❤️

bob 2016-10-18 12:34:13

i love thiss

Johnny Depp 2016-10-17 22:38:42

Helped me with my homework........

# 2016-10-17 08:47:41

I need to know in a 24 hr run cycle how Manny hours is 18 min on 36min off

louis 2016-10-15 18:59:40

it is very helpful for adding and subtracting time.

Mikalia 2016-10-13 13:03:29

Like omg it works so fast

Jay Brown 2016-10-13 08:44:55

this is cool

Bob 2016-10-12 06:34:17

It is cool

Sachin 2016-10-12 06:16:51

Very helpful

V good

johnny 2016-10-11 14:10:31

best clock ever!

iverlin Campbell 2016-10-07 03:20:14

Excellent much needed

Captain 2016-10-04 12:17:21

Helps me figure out when I need to clock back in from break. Time is a stupid concept when you think of it.

chloe williams 2016-10-04 06:13:43

this time couculator is very very cool

Wasim 2016-10-01 05:12:05

Very handy for me considering I'm pretty bad with numbers

Seby filby 2016-09-27 15:31:27

What time is it 20 minutes after 10 to 9 ?

emely 2016-09-26 16:46:31

its cool that there is a time calculator.

tclaw 2016-09-24 17:18:08

Pretty good right...huh

clare 2016-09-24 01:50:23

great thing to use

rahul 2016-09-19 08:38:45

This Trick Is Helpful for me

kijizzle 2016-08-26 16:22:22

I love this one

Simon 2016-08-19 07:13:39

Great Tool

DdaeLiDa 2016-08-11 20:58:10

Yeah! Very good. Thanks a lot

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