Comparing Times and get the greatest

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Hi How do I compare and get if time x is greater than time y?

EXAMPLE.

C#

DateTime x = DateTimeNow();
DateTime now = DateTime.Now;
TimeSpan diff = now - x;
System.Console.Write("File over stayed : time Differnece : " + diff); 

DateTime time = "00:30:00.000";
  
if (diff > time ) //This is where I get an Error
{
   System.Console.Write("File time too long : time Differnece : " + diff);
}
else
{
   System.Console.Write("File still new :"+diff);
}

Thanks in advance for your help.

Posted 22-Jan-13 0:50am

leketekoa

Updated 22-Jan-13 8:06am

fjdiewornncalwe

v3

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Andreas Gieriet · Answer 1 · 2013-01-22T08:04:00

DateTime is a point in time, where as TimeSpan is a duration.
With this in mind, think of it!

The difference between two points in time is a duration.
E.g. the difference between yesterday noon (a point in time) and today noon (a point in time) is 24 hours (a duration).

The difference between two durations is a duration again.
E.g. the difference between 5 minutes (duration) and 3 minutes (duration) is 2 minutes (duration).

Now you can elaborate yourself what it means to add/subtract durations/points in time to/from durations/points in time.
Some combinations may not be meaningful, though.

Finally, the DateTime and TimeSpan may not provide all possible operations from above.

Cheers
Andi

Amol Rawke Pune · Answer 2 · 2013-01-22T00:53:00

Solution 1

C#

DateTime first = GetFirstDate();
DateTime second = GetSecondDate();

if (first.Date.Equals(second.Date))
{
    // the dates are equal
}

in linq:

e => DateTime.Compare(e.FirstDate.Value, SecondDate) >= 0

Posted 22-Jan-13 0:53am

Amol Rawke Pune

Updated 22-Jan-13 0:59am

v2

Comments

BobJanova 22-Jan-13 11:38am

This doesn't answer the question. It also implies that DateTime.Equals and DateTime.Compare are the same thing, which they aren't.

Sergey Alexandrovich Kryukov 22-Jan-13 12:56pm

Of course.
—SA

BobJanova · Answer 3 · 2013-01-22T05:37:00

Solution 2

You are comparing a DateTime to a TimeSpan. I think you meant

TimeSpan time = new TimeSpan(0, 30, 0);
if(diff > time) ...

Posted 22-Jan-13 5:37am

BobJanova

Comments

Sergey Alexandrovich Kryukov 22-Jan-13 12:57pm

You can compare either DateTime or TimeSpan, apparently, with completely different meaning.
—SA