[RESOLVED] How many hours between two dates

Hi,

I have two dates that are stored as strings in the format 9/1/2011 5:00:00 PM.

I was hoping you could help me find an easy way to computer how many hours are between the two dates.

If date1 was 9/1/2011 5:00:00 PM
and date 2 was 9/2/2011 5:00:00 PM the answer would be 24


Thanks so much,

GB

Welcome to the Forums .. :wave:

Possibly something like this ..

Code:

---

hrs = DateDiff("h", date2, date1)

---

... where the "h" indicates the function returns "hours"

Spoo

Can I do that with strings? Or does date 2, and date 1 need to be Date?

Sure

Const date1 = "9/1/2011 5:00:00 PM"
Const date2 = "9/2/2011 5:00:00 PM"
MsgBox Abs(DateDiff("h", date2, date1))

If I read the date in from a textbox, can I just cast it do a date?

No need

MsgBox Abs(DateDiff("h", Text2.Text, Text1.Text))

O awesome. Thank you so much

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BTW I'd be remiss if I didn't mention how 'dangerous' it is to use textboxes that way. I don't know where the dates come from but when they are in a textbox the user can change them or just enter something that doesn't translate to a date so you should at least do something like this:

Code:

---

If Not IsDate(Text1.Text) Then
    MsgBox "The text in Text1 is not a valid date"
    Exit Sub
End If
If Not IsDate(Text2.Text) Then
    MsgBox "The text in Text2 is not a valid date"
    Exit Sub
End If

MsgBox Abs(DateDiff("h", Text2.Text, Text1.Text))

---

If the dates come from some source other than user input then you should probably use Labels instead of textboxes and in the formula use Label1.Caption instead of Text1.Text etc.