I've two cyber cafes each with 5 computers. I need a software or a peice of code that automatically records the logon time and logoff time and if possible records the same in a excel sheet or in a website (Like google docs, zoho editor etc).
Although not in the most convenient format, the event viewer can log user's logins/logouts. It will be under the security heading. You may have to edit the local policy to turn on auditing of accounts.