Track your work hours in Google Calendar

Google Calendar is a free time-management web application offered by Google. Turn on Applets to add the most important information, right into your calendar, automatically — and get custom notifications about the events that matter the most to you.
Google Contacts is your online address book. Sync your contacts to all your devices and access them everywhere. Turn on Applets to better manage all your contacts and sync or share them across hundreds of other services.