One of our web apps at work took data in the form of a pipe delimited text file
that had to have a VERY specificly formatted footer. I first wrote a data dump
in PHP, which prooved fairly straight forward, but I then had to write the
same in ASP for a windows server, heres a comparison of the results:

In PHP:

echo "***FileFooter|" . $i . "|" . date("H:i:s d/m/Y") . "|";

In ASP:

d = date
t = time
If hour(t) < 10 Then
	HH = "0" & hour(t)
Else
	HH = hour(t)
End If
If minute(t) < 10 Then
	MM = "0" & minute(t)
Else
	MM = minute(t)
End If
If second(t) < 10 Then
	SS = "0" & second(t)
Else
	SS = second(t)
End If
If day(d) < 10 Then
	DD = "0" & day(d)
Else
	DD = day(d)
End If
If month(d) < 10 Then
	MMM = "0" & month(d)
Else
	MMM = month(d)
End If
If year(d) < 10 Then
	YY = "0" & year(d)
Else
	YY = year(d)
End If
Response.Write("***FileFooter|" & i & "|" & HH & ":" & MM & ":" & SS & " " &
DD & "/" & MMM & "/" & YY & "|")