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How to convert military time to standard time?

Posted on 2004-09-11
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Last Modified: 2011-08-18
What's an easy way to convert military time to standard time examples:

2115  = 9:15 pm
0051 = 00:51 am
1734 = 5:34 pm
0912 = 9:12 am

Thanks
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Question by:rkckjk
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8 Comments
 
LVL 76

Expert Comment

by:GrahamSkan
ID: 12035581
strStandardTime = Format$(Left$(strMilitaryTime,2) & ":" & Right$(strMilitaryTime,2), "Medium Time")
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Author Comment

by:rkckjk
ID: 12035610
All I get is the following

:


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LVL 85

Accepted Solution

by:
Mike Tomlinson earned 125 total points
ID: 12035614
Option Explicit

Private Sub Command1_Click()
    Dim milTimes As Variant
    Dim stdTime As Date
    Dim milTime As String
    Dim curMilTime As Variant
   
    milTime = "2115,0051,1734,0912"
    milTimes = Split(milTime, ",")
    For Each curMilTime In milTimes
        stdTime = militaryToStandardTime(curMilTime)
        Debug.Print curMilTime & " = " & stdTime
    Next
End Sub

Private Function militaryToStandardTime(ByVal militaryTime As String) As Date
    Dim n As Date
    Dim curDateTime As String
    Dim strHour As String
    Dim strMinute As String
    Dim ampm As String
   
    strHour = Left(militaryTime, 2)
    strMinute = Right(militaryTime, 2)
    If Val(strHour) > 12 Then
        strHour = CStr(Val(strHour) - 12)
        ampm = "PM"
    Else
        ampm = "AM"
        If strHour = "00" Then
            strHour = "12"
        End If
    End If
   
    n = Now()
    curDateTime = Day(n) & "/" & Month(n) & "/" & Year(n) & " " & strHour & ":" & strMinute & " " & ampm
    If IsDate(curDateTime) Then
        militaryToStandardTime = CDate(curDateTime)
    End If
End Function
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LVL 76

Expert Comment

by:GrahamSkan
ID: 12036078
What was the value of  your?

strMilitaryTime.

If it is not in the format of the string that you said that it would be, then the procedure won't work.
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LVL 2

Author Comment

by:rkckjk
ID: 12036216
Your method would have worked I just tested it wrong. My mistake. I don't know if you can get the points since I already accepted another answer.

Sorry
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LVL 85

Expert Comment

by:Mike Tomlinson
ID: 12036314
The difference betwen our two solutions is that I create a Date out of the military time while, GrahamSkan's method returns a string representing the military time in standard format.

To get the points changed you can post a request here:
http://www.experts-exchange.com/Community_Support/

Be sure to give a link back this question:
http://www.experts-exchange.com/Programming/Programming_Languages/Visual_Basic/Q_21127517.html

Regards,

Idle_Mind
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LVL 76

Expert Comment

by:GrahamSkan
ID: 12037303
rkckjk,

Don't bother to change the points. I just got all the points by mistake on another question. We can't actually do anything with them and anyway, Idle_Mind's solution was far more comprehensive.
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