Project TIME calculated, in PHP

tImeArrived = CDate(InputBox("Enter START time:", "Start time", "9:00 AM")) TimeLeft = CDate(InputBox("Enter END time:", "End time", "1:24 PM")) Minutes = DateDiff("n", TimeArrived, TimeLeft) Hours = Int(Minutes / 60) Minutes = Minutes - (Hours * 60) TotalTime = Format(Hours, "0") & ":" & Format(Minutes, "00") I did something like this in VBA, but I want to create something for PHP. How can extract an am or pm from the input string, convert to 24 hours for calculations, then convert back to 12 hour am/pm format in PHP? I want to be able to put 9:00 am as Time Arrived, and 1:00 PM as Time Left, then it puts in the subject the total time i worked on X project. IN VBA thier is time diff function, how do I create something like that that will create a email message, that is then sent to a suplied email, (i.e. our ticket system). Basically I want to transform my VBA code to PHP, so I can run a similar idea on my Blackberry so other technicians in our office can send a proper email on a blackberry while on call in the road. This is what I did in VBA " Dim OutlookMessage As Outlook.MailItem Set OutlookMessage = Application.CreateItem(olMailItem) MsgBox ("Welecome To Support Email") custname = InputBox("Enter Cust name ", "Enter Cust Name", "Put Cust Name") job = InputBox("Work done", "Work", "Short Discrption") TimeArrived = CDate(InputBox("Enter START time:", "Start time", "9:00 AM")) TimeLeft = CDate(InputBox("Enter END time:", "End time", "1:24 PM")) Minutes = DateDiff("n", TimeArrived, TimeLeft) Hours = Int(Minutes / 60) Minutes = Minutes - (Hours * 60) TotalTime = Format(Hours, "0") & ":" & Format(Minutes, "00") OutlookMessage.Subject = custname & ": " & Date & " " & job OutlookMessage.To = "blah@blah.com" OutlookMessage.CC = "blahcc@blah.com" OutlookMessage.Body = custname & " " & Chr(13) & Date & Chr(13) & "A: " & TimeArrived & Chr(13) & "E:" & TimeLeft & Chr(13) & "Total: " & TotalTime & " " & Chr(13) -- " THanks Justin IT-TECH