[RESOLVED] Date and Time Calculation

Hi all.

Can someone please provide code for the following calculations using dates and times. I have hit a brick wall with this :blush:.

if the current hour is less than 21:00 (today) then show the remaining time in label3 as hh:mm:ss remaining. However, if the current hour is greater than 21:00 then show show the remaining time calculated in hh:mm:ss from 21:00 on the next day.

Any help would be appreciated.
Regards
Colin

Code:

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        Dim whenDT As DateTime = #9:00:00 PM#
        Dim dt As DateTime = DateTime.Now

        If dt.TimeOfDay >= whenDT.TimeOfDay Then

        Else

        End If

---

Quote:

---

Originally Posted by dbasnett

Code:

---

        Dim whenDT As DateTime = #9:00:00 PM#
        Dim dt As DateTime = DateTime.Now

        If dt.TimeOfDay >= whenDT.TimeOfDay Then

        Else

        End If

---

---

Thanks. Could you provide the code that actually does the calculation. Sorry if my post is a bit misleading, I tried to word it as best I could.

Regards
Colin

Not sure what calculation you mean, but I'll guess

Code:

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        Dim dt As DateTime = DateTime.Now
        Dim whenDT As DateTime = dt.Date.AddHours(21)
        Dim elaps As New TimeSpan

        If dt.TimeOfDay > whenDT.TimeOfDay Then
            whenDT = whenDT.AddDays(1)
        End If
        elaps = whenDT - dt

        'read about timespan
        Debug.WriteLine(elaps.ToString)

---

I'll see if I can define the required calculations a bit better.

If the current system time hours < 21:00 then calculate the time difference between current time and 21:00 (formatted as HH:mm:ss)

else if the current system time > 21:00 then calculate the time difference between current system and 21:00 tomorrow (again formatted as HH:mm:ss).

Hope this is a bit clearer. Sorry for the confusion with my original post.

Regards
Colin

Quote:

---

Originally Posted by wearmc

I'll see if I can define the required calculations a bit better.

If the current system time hours < 21:00 then calculate the time difference between current time and 21:00 (formatted as HH:mm:ss)

else if the current system time > 21:00 then calculate the time difference between current system and 21:00 tomorrow (again formatted as HH:mm:ss).

Hope this is a bit clearer. Sorry for the confusion with my original post.

Regards
Colin

---

Except for the formatting, that is what you have. BTW - What about
current system time = 21:00 ??????

If the current time is before 9PM on this date then show how long till 9PM this date
else show how long till 9PM tomorrow

Sorry, didn't understand your code. I thought it was only accounting for the time difference on the same day. My apologies. Will mark thread as resolved.Thanks for your help.

Regards
Colin