time formule
 

date working time working time working time
working time
for last 7 days for last 30
days for last year(2006)
12.25.05 08:30
01.01.06 07:15
03.20.06 08:40
04.12.06 07:45
04.15.06 08:10

How can i formulate this table for cells C1, D1, E1 ? I enter new value in
cell A1, A2 every day?
Thanks...