Comparing two date times

Question

Say now is 13:12 PM and I want to see if it is earlier than 20:00 PM.... I get the current time using DateTime.Now but I format it as "h:mm tt" and I want to see if a given current time is say between 8:00 AM and 20:00 PM.

20:00 PM is not a valid representation of time. What have you tried so far? — Liu, Mar 25 '17 at 11:46

Vikhram · Answer 1 · 2017-03-25T11:42:04.933

0

You can compare the DateTime objects directly r use the Ticks property to compare them. Below is a simple example demonstrating that

var dt1 = DateTime.ParseExact("8:00:00", "H:mm:ss", null);
var dt2 = DateTime.ParseExact("20:00:00", "H:mm:ss", null);

if (dt1 <= DateTime.Now && dt2 >= DateTime.Now)
    Console.WriteLine("Hooray");

edited Mar 25 '17 at 11:42

answered Mar 25 '17 at 11:22

Vikhram

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not working... I used it like this: `var dt1 = DateTime.Parse("8:00:00"); var dt2 = DateTime.Parse("20:00:00"); if (dt1 <= DateTime.Now && DateTime.Now >= dt2) MessageBox.Show(DateTime.Now.ToString("h:mm tt")); else MessageBox.Show("No.");` current time here is: 13:32 PM – Mar 25 '17 at 11:32
@A.Ispas Not sure why it did not work for you, since it worked for me. My guess would be your locale settings are different than mine. I edited the answer to use `ParseExact`. Please try that. If that does not work, can you show the output of `DateTime.Now.ToString()` for you. Your focus should be actually on the `if` line and not the other lines – Vikhram Mar 25 '17 at 11:44
`if(DateTime.Now.Hour > 8 && DateTime.Now.Hour < 20) { MessageBox.Show("hooray"); }` it works like this so its okay now. I figured it out. Thanks. – Mar 25 '17 at 11:48

score 0 · Answer 2 · answered Mar 25 '17 at 11:44

0

The code goes as under:

DateTime dtFrom = DateTime.Now.Date.AddHours(8);  // Use Current Date and set time to 8:00 AM
DateTime dtUpto = DateTime.Now.Date.AddHours(20);    // Use Current Date and set time to 20:00 (8:00 PM)
DateTime dtCurr = DateTime.Now;
if (dtFrom <= dtCurr && dtCurr <= dtUpto)
    MessageBox.Show(dtCurr.ToString("h:mm tt"));
else
    MessageBox.Show("No");

answered Mar 25 '17 at 11:44

Rupesh

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6

if(DateTime.Now.Hour > 8 && DateTime.Now.Hour < 20) { MessageBox.Show("hooray"); } it works like this so its okay now. I figured it out. Thanks. – Mar 25 '17 at 11:48

score 0 · Answer 3 · answered Mar 25 '17 at 11:47

0

Please you can check this way:

DateTime dt1;
          dt1 = DateTime.Parse("8:00:00");
        DateTime dt2;
          dt2 = DateTime.Parse("20:00:00");
    if (dt1 <= DateTime.Now && DateTime.Now >= dt2) 
        {
          MessageBox.Show(DateTime.Now.ToString("h:mm tt"));
        }
     else MessageBox.Show("No.");

answered Mar 25 '17 at 11:47

anis programmer

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`if(DateTime.Now.Hour > 8 && DateTime.Now.Hour < 20) { MessageBox.Show("hooray"); }` it works like this so its okay now. I figured it out. Thanks. – Mar 25 '17 at 11:48

Comparing two date times

3 Answers3