1) There is no need to enter time as 'a.m.' 'p.m.' or '24 hour' time.
2) Instead of entering times with a colon (e.g. 11:30), use a decimal point.
So 11:30 is input as 11.50 (or for greater ease, just enter 11.5)
Whole hours may be entered without any decimal points.
3) In order to get a total in the right hand column, all four boxes in that
row must be filled in.
4) IMPORTANT >>>>>  
If an employee has NO 'break' in their daily hours,
enter their 'IN' and 'OUT' times in the first 2 columns and then zeroes for
the second pair of 'IN' and 'OUT' times.