When opening Google Calendar, the below image is the first screen that will appear. Much like Google Docs, simply click the Create button on the left side to add a new entry to the calendar.
Creating a new entry in the calendar
Once you click on the button marked Create on the calendar overview screen, a new screen will appear. Enter all of the details in the clearly marked boxes and click Save.
The create screen looks like this:
To enable offline Calendar viewing, click on the Settings menu and click on the option marked Offline as shown here:
Once clicked, a page will appear as below:
Click on Enable and the offline calendar mode will automatically configure. Each time the system is connected to the Internet, the calendar will be automatically synchronised.