aTimeLogger - Application for tracking your everyday activities.
Taskful - Deadlines, meet your match.
myPoli - Gameified to-do list and habit tracker.
Calendarist - Time blocking companion for Google Calendar
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Centered - Centered helps you get into a Flow State faster and stay there longer so you can do your best work.