I used Slimtimer. There are tons and TONS of timer applications. Then I use the powers of CSV+programming or excel to massage the data into whatever inane format people want it in.
(Then I got a salaried job ;) Though keeping track of the time you spend on things is important for another reason: those "I'll be done in a few days!" declarations are either backed up by fact, or provably wrong.)
I just went to slimtimer. They are obviously trying to get businesses as customers. Their opening line:
All your timesheets are belong to us.
(it does rotate)
(Then I got a salaried job ;) Though keeping track of the time you spend on things is important for another reason: those "I'll be done in a few days!" declarations are either backed up by fact, or provably wrong.)