How to compare two Times [modified]

[VenkataRamana Gali]

Hello all, how to compare two times using DateTime object. I need to compare hours & minutes only based on this i am showing some message. plz help me

regards GV Ramana

[Mali Perica]

For hours and minutes only, without dates and seconds:

        DateTime first;
        DateTime second;

        if (first.Hour > second.Hour)
        {
            //first is later
        }
        else
            if (first.Hour == second.Hour)
                if (first.Minute > second.Minute)
                {
                    //first is later
                }
                else
                    if (first.Minute == second.Minute)
                    {
                        //they are the same
                    }
                    else
                    {
                        //second is later
                    }
            else
            {
                //second is later
            }

[Martin 0]

Hello, Look at System.TimeSpan class. All the best, Martin

[Muammar]

TimeSpan is what you need.

---

Smile: A curve that can set a lot of things straight! (\ /) (O.o) (><)

[Dewald]

Yu can use the System.TimeSpan class. Quite handy, especially when used in conjunction with System.DateTime. DateTime dt1 = DateTime.Parse("2007/06/14 13:24:00"); DateTime dt2 = DateTime.Parse("2007/06/14 12:00:00"); TimeSpan ts = dt1 - dt2; double elapsed = ts.TotalHours; This will give you the total number of hours elapsed from dt1 until dt2. If you are rather interested in the total number of minutes that elapsed you can use: double elapse = ts.TotalMiutes; or a host of others.

[Luc Pattyn]

Hi, if you want to ignore the other fields in a DateTime, you can not easily use the available functions, nor TimeSpan. I then suggest something like this:

public static int CompareHourMinuteOnly(DateTime dt1, DateTime dt2) {
int diff=dt1.Hour-dt2.Hour;
if (diff==0) diff=dt1.Minute-dt2.Minute;
return diff;
}

:)

Luc Pattyn [My Articles] [Forum Guidelines]

[andreumv]

Ramana. G.V wrote:

how to compare two times using DateTime object. I need to compare hours & minutes only based on this i am showing some message.

If DateTimeObject1.TimeOfDay = DatTimeObject2.TimeOfDay Then 'do something End If

[Martin 0]

Hmm, It's not an answere to the question, and it's not C# code!

[Le centriste]

Another way would be to force the 2 DateTime instances to have the same date (hardcode to something like 0001-01-01) and then do a DateTime.Compare(d1, d2);

----- Formerly MP(2) If atheism is a religion, then not collecting stamps is a hobby. -- Unknown