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
Recent Comments
Jessica bradshaw 2020-07-02 08:18:32

This is amazing.so helpful.i recommend this

Anu Aremu 2020-06-23 05:54:53

Thanks very helpful

Danny 2020-06-17 01:26:49

Need app on play store

нигга 2020-06-16 06:18:28

Dylan, do you think maths works differently in different time zones?

I love this! 2020-06-15 07:31:55

Awesome!!!! Soo helpful!

mathy man 2020-06-15 06:32:30

this helps me with math so much i thank whoever made this

Dylan 2020-06-14 14:45:43

What time zone is this?

Tsumugi 2020-06-02 16:55:19

Great website. I love the way you get to choose to add or subtract.

TGS ! 2020-06-02 08:18:16

I would like more slots like multiplication and division and you should be able to add minutes+minutes+minutes+seconds for example. I would also want to have bigger time slots like days, weeks, months, years, and maybe decades, centuries, and melaniums. I hope the owner sees this and improves this website. Other than that its very useful.

Bob 2020-06-01 06:37:33

Good use of my time

brianna 2020-05-24 02:02:46

I hate it I need to use division and multiplication but do u think I can find a time calculator using those? NO

Annoyed 2020-05-21 18:45:34

Ad more slots!!!!!!!!!! And multiplication/division!!!!!!!!!!!!!!!

Jazib 2020-05-21 04:19:42

Please can you put 2 hours alarm on

ania 2020-05-20 09:57:52

Should allow multipication and division

HAPPY FACE 999 2020-05-13 10:04:37

I LOVE this website. It helped me know all the answers!

Anonymous 2020-05-11 10:48:13

I’m doing a timed thing for my game and I needed this. Good website

Shadow 2020-05-05 13:46:14

Please add AM and PM its kinda confusing, but otherwise the rating: 5 stars!

maddog 2020-05-04 14:20:32

ad more slots so u can add multiple numbers at a time

Cryptic 2020-05-04 12:58:30

You should be able to convert minutes into seconds.

Rei 2020-05-04 02:47:46

This is really helpfull...It told me what time i come on here to read the funny comments.

Free Willy 2020-04-29 08:12:29

i love it. it really helps me to know how long i have left to fast during Ramadan. thanks a lot.

Alex 2020-04-23 06:23:54

May you please add PM and AM because some of mine calculations were wrong

Mitch 2020-03-26 05:43:59

I use this as an EMS dispatcher. Very convenient in my line of work.

George 2020-02-29 03:50:33

Please you guys gotta come out with an iPhone app. This is cool

blokk hedd 2020-02-20 09:39:35

this helps me on Dreambox, but I gotta convert it sometimes

Adam 2020-02-20 06:40:08

Nice Programm! Very easy to use. I use to calculate my working time from start till end. Rating: 5 Stars

Alicia 2020-02-05 12:46:42

I work at a school and I need to figure out their minutes for the day, I use it and shared it with other co-workers we love it!

Laura 2020-01-16 08:45:16

I love using this! I use it at work it saves me a lot of time!! love it!

Big Shawty 2020-01-14 16:06:20

Add more slots Plzzzz

Bernard 2019-12-17 14:01:48

My annual leave entitlement in shown only in hours. ie 1 day annual leave = 7 Hours and 36 minutes. Could you provide time multiplication.

JJ 2019-12-08 18:02:08

This was helpful, but this should also include multiplication and division!

Courtney 2019-12-04 06:59:47

This time calculator is a very accurate calculator. I will always depend on this when needing to know what time my cookies, brownies or cinnamon rolls will be done. Thank you for making this app so easy to use.

Tim.w 2019-11-20 09:32:33

plz allow multiplication on the website for uses of multiple number times itself

Bee from Dubai 2019-08-24 04:43:35

Thank you... I figured out what time my date was supposed to arrive. She said it takes 45 minutes.

Texas Kid 2019-08-08 13:09:07

I do videos and music. This calculator has been very valuable in my work.

a 2019-07-25 05:49:45

this is cool but is it possible to multiply time by regular numbers?

Willow 2019-07-02 11:23:32

It really helps me do my home work because it is hard!

Blaze 2019-06-25 16:02:30

This helped me figure out when to start yelling at my friend to come back on discord.

Unknown 2019-06-22 19:40:21

It really helped me understand about the time. This Time Calculator is just fantastic. You don't even have to do math in your head just go on Google and say,"Time Calculator ". It will show every thing that you want to know about!!!..... I love it!!!!

Unicorn 2019-05-20 17:33:02

you should add more like nanoseconds to a millennium

DJ 2019-05-13 21:50:32

awesome... helped me find out how long I took to go through the hilarious comments here !!

Queen a.y 2019-04-28 06:58:23

This calculator is very smart!!!

Lemons 2019-04-16 08:29:46

I use this everyday

Great Job 2019-03-22 15:39:23

It really helped me to correct my dad

Sohail 2019-03-18 01:29:38

It is very useful. I have to calculate from sunrise to sunset to sunrise equal to 24 parts.like 1hour 2mnt 5 second for 1 part.
For amliat every day.thanks

Piper 2019-03-13 07:46:23

This site is good with dreambox, I like it.

Kellie 2019-03-05 07:54:40

This help with my mathematics Homework

jay 2019-02-14 10:20:28

There needs to be a AM and a PM setting, other than that it s good.

shekh imtiaz 2019-01-29 10:05:26

this app is really a very good for my time adjustment and calculating

Nagarjuna 2019-01-25 08:14:33

I really like this site :) It always helps me to calculate correct time :) Great help I appreciate!!!

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