Google Calendar is a very good online calendar for planning your tasks. If you are using Google Calendar for your work calendar (or time sheet), you can now automatically generate time reports (time sheets) for your current projects using GTimeReport. All you need to do is log on to your Google account in order to get started and then export it to Excel sheet. You can login to Google Account using authentication.
You can select the calendar, data range for which you want to create reports and then the type of report. You can either create the report in new window or create an excel report.
GTimeReport works by taking away much of the repetitive work from creating reports. Depending on how you work with Google Calendar, GTimeReport can help you in several different ways with your time reports.