Timesheets has come up in newsgroups quite often, so you
could find something, by
1) Use Google for a web search
2) Use Google for a groups search
If you did a Google search you would find Microsoft Templates.
You might run across a sample time sheet. Knowing that there is such
a place you use the following as your Google search
site:microsoft.com time-sheet excel
One of the Google hits is:
http://office.microsoft.com/en-us/assistance/ha011133131033.aspx
The timesheet templates should include calculations,
but some of the templates do not, in any case
you should learn about subtracting dates and times
anyway, see
http://www.cpearson.com/excel/datetime.htm
http://www.mvps.org/dmcritchie/excel/datetime.htm
You might find an example of a time sheet
Employee Time Sheet
http://j-walk.com/ss/excel/files/timesht.htm
Please use your first and last name in newsgroups, at least
in technical newsgroups where people have to take some time
to answer questions. It would also help you to find your old
postings so you don't have to ask the same question again..