sutracting 24 hour time

davidmccabe · 11-17-2003, 07:03 AM

I need to construct a ‘C’ program that subtracts one time from another. The times are expressed in terms of a number of hours and a number of minutes and are in 24-hour format. For example, subtracting 1 hour 30 minutes from 1 hour 0 minutes (representing 01:00) should result in 23:30 being displayed (i.e. 11:30pm the previous day). The user will enter four values (the hours and minutes of each of the two times) and the program should then output the result of the subtraction in 24-hour format.

Any help will be much appreciated

quzah · 11-17-2003, 07:10 AM

No one is going to do your homework for you. Post your attempt and what you're having problems with. While you're at it, read the forum rules at the top of the forum.

Quzah.

davidmccabe · 11-17-2003, 07:13 AM

would i need to change all times into minutes first and work from there or will i keep them in hours. also would i need to use floor

**Salem** · 11-17-2003, 07:45 AM

> would i need to change all times into minutes first and work from there or will i keep them in hours
Either will work, though I suspect one will be easier than the other.

But as you said, "I need to construct a ‘C’ program"
You DO
We advise, suggest, correct, hint, explain

11-17-2003, 07:03 AM	#1
davidmccabe Registered User Join Date: Nov 2003 Posts: 5	sutracting 24 hour time I need to construct a ‘C’ program that subtracts one time from another. The times are expressed in terms of a number of hours and a number of minutes and are in 24-hour format. For example, subtracting 1 hour 30 minutes from 1 hour 0 minutes (representing 01:00) should result in 23:30 being displayed (i.e. 11:30pm the previous day). The user will enter four values (the hours and minutes of each of the two times) and the program should then output the result of the subtraction in 24-hour format. Any help will be much appreciated
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11-17-2003, 07:10 AM	#2
quzah +++ OK NO CARRIER Join Date: Oct 2001 Posts: 10,640	No one is going to do your homework for you. Post your attempt and what you're having problems with. While you're at it, read the forum rules at the top of the forum. Quzah. __________________ Hundreds of thousands of dipshits can't be wrong. Are you up for the suck?
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11-17-2003, 07:13 AM	#3
davidmccabe Registered User Join Date: Nov 2003 Posts: 5	would i need to change all times into minutes first and work from there or will i keep them in hours. also would i need to use floor
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11-17-2003, 07:45 AM	#4
Salem and the hat of Jobseeking Join Date: Aug 2001 Location: The edge of the known universe Posts: 21,680	> would i need to change all times into minutes first and work from there or will i keep them in hours Either will work, though I suspect one will be easier than the other. But as you said, "I need to construct a ‘C’ program" You DO We advise, suggest, correct, hint, explain __________________ If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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