Hello,

I am using this formula (with thanks to Bob Phillips) to see if a block of
time falls with in a schedule:

'=MIN($W$1+TIME(0,30,0),$J4)-MAX($W$1,$I4)

W1 = 06:00
J4 = 14:30
I4 = 06:00

So I am really testing the half hour period of 6:00 and 06:30 to see if the
employee with the shift 06:00 to 14:30 is scheduled to work, which of course
he is.

I have two problems with this:

The cells that have the formula are formatted as time (13:30) and in my code
I have something that refers to "if the cell value is equal to "0:30" then
do something". In some cases, it is missing cells that it shouldn't.

The reason I formatted the cells to time in the first place is because some
cells were off fractionally, so I couldn't just say "if cell is = to 0.02083"

So - my first question is, what would be the best way to wrap my formula is
something (round, roundup??) that will force the result to the appropriate 30
minutes.

The second question is, how to I adapt the formula to account for the fact
that the shift end time in J4 may cross midnight. Also, the time in W1 may
cross midnight.

I understand the concepts, but I just can't get the formula right. Any help
would be very much appreciated!!