Check out Time Punch Pro for no ads and all future updates and features.

Keep track of billable time while working on a project. Runs in real-time even if you are on the phone or have it asleep.

Features:
-Adjustable decimal hourly rate
-Notification bar quick link
-Pause/resume
-Landscape and portrait

Finally, an on-screen keyboard for Android!!!
Enter text without having to slide out the keyboard...