Google Calendar Time Spent

This extension allows you to display the amount of time for each colour of your google calendar. It allows you to know how much time you have (or will) spend each week on each one of your categories. N.B. : * time slots that are not multiples of 15 minutes (e.g. 20 minutes, 55 minutes) might not be accounted correctly * meetings that are not accepted are counted in the "white" category.