Sam, have a look here for some functions

http://www.cpearson.com/excel/overtime.htm
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Paul B
Always backup your data before trying something new
Please post any response to the newsgroups so others can benefit from it
Feedback on answers is always appreciated!
Using Excel 2002 & 2003

"Sam" wrote in message
...
I'm new to excel. I'm setting up a time sheet and would like to know what
calulation I use to figure out the hours worked with a 1/2 hour not being
paid for.
Thanks in advance.