Can you confirm if you just want a generic time to start as soon as you log into your desktop or do you want it to start as soon as you start using an app be it installed or online in a browser?
This can be done with the Timeline feature or the Autotracker feature. The only difference is that with the Autotracker, you setup keywords to control which apps get recorded, while the Timeline feature records any app you spend more than 10s on
Both the Timeline and the Autotracker feature will record apps used in a browser using the tab title for the time entry description.
You can either create a report every day using the Reports page and choosing the Detailed report or the Summary report; or you can save one of those (Saved reports) and schedule it to be emailed to you daily using Scheduled reports to email