Date and Time calculations

[TheObserver]

Are there any existing libraries to do date and time calculations, or any examples that I could be pointed to?

IE, I would like to, in one case, take in a date and add or subtract a certain number of hours, minutes, days, whatever.

Another case would be to take two days and determine the amount of time/days/time units between the two.

I can see needing to write these from scratch, but I wanted to get a consensus on whether these are already in existance (no need to reinvent the wheel).

Thanks for your time.

 

[palbano]

look at the gregorian::date class in Boost

http://www.boost.org/libs/date_time/doc/class_date.html

-pete

 

[globos]

You can have a look at Qt 2.3 library(non-commercial).
Interesting classes are QDate, QTime, and QDateTime :

http://doc.trolltech.com/2.3/classes.html

--
Globos

 

[gasingh]

You can google for the library. This is a very standard requrement and I am sure a lot of people need it. I think you will find a tested code for this on the net.