Sharing your calendar with a spouse or close friend can certainly make your day easier.
Calendar App on the iOS platform is robust enough to be shared and accessed by a number of folks at the same time. Of course, several people accessing your calendar may affect your device's battery life a bit, but not drastically. Here are the simple steps you can follow to share your calendar(s) with others.
Open the Calendar App.
Click on the Calendars button on the top left corner.
From the list of available Calendars, click on any one you wish to share.
Tap on Add Person and add the email address of the person you wish to add, and send him or her a message.
Click on View and Edit, if you wish to limit the person's access only till viewing, or let them edit your calendar as well.
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