# Formula To Calculate How Many Hours Minus 30 Mins For Lunch

Jan 12, 2009If a person does a full day I want the formula to calculate how many hours minus 30 mins for lunch i.e. 7:30 - 4:00 = 8 hours. I have done this and it works fine, the problem comes when a person does a half day i.e. 7:30 - 11:30, this will read 4.5 hours. If this is the case I don't want the 30mins deducted so it should be 4.0 hours worked.

I have high lighted a column in the work sheet (yellow) whereby the user puts an 'x' in the appropriate cell if they are working a half day.

The probem is I cannot incorperate the two formulas in one cell (the Actual hours cell) I have the one formula in the actual hours cell and the other bolted on the end thus giving two different readings.