Google Calendar is a free online shareable calendar service. With Google Calendar, it's easy to keep track of all your life's important events – birthdays, reunions, little league games, doctor's appointments – all in one place.

Using Google Calendar, you can add events and invitations effortlessly, share with friends and family (or keep things to yourself), and search across the web for events you might enjoy. It's organizing made easy.

Seeing the big picture
• With Google Calendar, you can see your friends' and family's schedules right next to your own; quickly add events mentioned in Gmail conversations or saved in other calendar applications; and add other interesting events that you find online.

Sharing events and calendars
• You decide who can see your calendar and which details they can view. Planning an event? You can create invitations, send reminders and keep track of RSVPs right inside Google Calendar. Organizations can promote events, too.

Staying on schedule
• You can set up automatic event reminders, including mobile phone notifications, and instantly bring up anything on your calendar with the built-in search tool.

Sign in to Google Calendar