1. You Can't Access Google Calendar
If Google is experiencing an outage or you're offline and can't access your calendar, Google's SMS service lets you register your phone to receive calendar notifications via SMS.
To opt in to this service, sign into Google Calendar and click "Settings" from the drop-down menu at the top right. Click the "Mobile Setup" tab to enter your phone number and click "Send Verification Code." When you receive the code, enter it on the page and click "Finish Setup."
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To receive an SMS alert when an event or appointment is approaching, double-click your event and select "Add a reminder" next to the "Reminders" category. Select SMS and set the time, then click Save. Your Google Calendar will send you a text message reminding you of the event before it begins.
2. You Need To Reschedule A Meeting
Something comes up and you need to reschedule a meeting with five of your colleagues, but finding a time and place that works for everyone can be an ordeal. Luckily, Google has a solution that makes this task easy.
Google Calendar's "Find a time" feature helps you reschedule events, as long as you have access to your guests' calendars. To reschedule, double-click the event and switch the view from "Event details" to "Find a time." These tabs are side-by-side below the event name, date and time. This view will show you when your colleagues are available, which should make rescheduling the meeting easier. This feature works only for up to 10 attendees.