Read Time Formatted Cell In VBA Macro

I've written a script to read all the values in an excel worksheet in to an array. The cell types differ from General or Text to Custom - HH:MM When I look through the array the script has returned the correct value for most but for the cells that are of a custom type an "incorrect" value has been returned. For example a cell of type Custom HH:MM which is 10:23:00 in the worksheet appears as 0.432638888888889 in the array. Is there a way to get the script to return the correct value?
Below is an extract of the code I've used

If objWorksheet.Cells(i, "D") <> "" Then
If objWorksheet.Cells(i, "F") <> "" Then
arrCULDEV = Split(objWorksheet.Cells(i, "F"), ":")
Redim Preserve arrSheetInfo(x)
arrSheetInfo(x) = arrCULDEV(0) & "," & arrCULDEV(1)
x = x + 1
i = i + 1
Else
i = i + 1
End If
End If