I want add hours or minutes to current time

Question

Hello .. I want increase time to current time for example, I have the time of the problem and the expected time to complete them How can I add?

 (DateTime.Now.ToShortDateString()  +.......)

Answer 1

You can use other variable

DateTime otherDate = DateTime.Now.AddMinutes(25);
DateTime tomorrow = DateTime.Now.AddHours(25);

Answer 2

You can also add a TimeSpan to a DateTime, as in:

date + TimeSpan.FromHours(8);

Answer 3

You can use the operators '+' '-' '+=' and '-=' on a DateTime with a TimeSpan argument

DateTime myDateTime = DateTime.Parse("24 May 2009 02:19:00");

myDateTime = myDateTime + new TimeSpan(1, 1, 1);
myDateTime = myDateTime - new TimeSpan(1, 1, 1);
myDateTime += new TimeSpan(1, 1, 1);
myDateTime -= new TimeSpan(1, 1, 1);

Furthermore you can use a set of "Add" methods

myDateTime = myDateTime.AddYears(1);                
myDateTime = myDateTime.AddMonths(1);              
myDateTime = myDateTime.AddDays(1);             
myDateTime = myDateTime.AddHours(1);               
myDateTime = myDateTime.AddMinutes(1);            
myDateTime = myDateTime.AddSeconds(1);           
myDateTime = myDateTime.AddMilliseconds(1);       
myDateTime = myDateTime.AddTicks(1);

For a nice overview of even more DateTime manipulations see http://www.blackwasp.co.uk/CSharpDateManipulation.aspx