How to compare time part of datetime

Question

Let's say we have

DateTime t1 = DateTime.Parse("2012/12/12 15:00:00.000"); 

and

DateTime t2 = DateTime.Parse("2012/12/12 15:03:00.000"); 

How to compare it in C# and say which time is "is later than"?

Answer 1

You can use the TimeOfDay property and use the Compare against it.

TimeSpan.Compare(t1.TimeOfDay, t2.TimeOfDay) 

Per the documentation:

-1  if  t1 is shorter than t2. 0   if  t1 is equal to t2. 1   if  t1 is longer than t2. 

Answer 2

The <, <=, >, >=, == operators all work directly on DateTime and TimeSpan objects. So something like this works:

DateTime t1 = DateTime.Parse("2012/12/12 15:00:00.000"); DateTime t2 = DateTime.Parse("2012/12/12 15:03:00.000");  if(t1.TimeOfDay > t2.TimeOfDay) {     //something } else {     //something else }