Datatype for date & time?

Question

Which types should I use to handle date & time?

I'll need to deal with lots of calculation, such as

20/06/2016 +1 = 21/06/2016

Any help is greatly appreciated.

Answer 1

https://msdn.microsoft.com/en-us/library/system.datetime(v=vs.110).aspx
https://msdn.microsoft.com/en-us/library/system.timespan(v=vs.110).aspx

Which to use depends most likely on your circumstances.

Answer 2

As mentioned, DateTime and TimeSpan. Here are a couple of examples:

using DateTime only:

DateTime date = new DateTime( 2016, 06, 20 ); // parameters: year, month, day
Console.WriteLine( "Original date: " + date.ToShortDateString() ); // The ToShortDateString() method displays only the date
date = date.AddDays( 1 ); // Add 1 day. There are also methods for AddYears, AddMonths, etc
Console.WriteLine( "New date: " + date.ToShortDateString() ); // The ToShortDateString() method displays only the date

using DateTime + TimeSpan:

DateTime date = new DateTime( 2016, 06, 20 ); // parameters: year, month, day
TimeSpan tSpan = new TimeSpan( 1, 0, 0, 0 ); // parameters: days, hours, minutes, seconds
Console.WriteLine( "Original date: " + date.ToShortDateString() ); // The ToShortDateString() method displays only the date
date += tSpan; // add timespan (1 day) to date
Console.WriteLine( "New date: " + date.ToShortDateString() ); // The ToShortDateString() method displays only the date

Answer 3

There are two time types. One respresenting a date and the other one a time span.
TimeSpan is the type which represents a time span and DateTime is the type which represents a date.

Answer 4

@LaserHydra

Thanks. But can you elaborate more?