Access to Google Calendar
Open a new tab and go to Google Calendar by either clicking
the nine patch in the upper right corner and selecting
Calendar or going to calendar.google.com.
Click on the date/time of your office hour session.
In the menu that pops up, name the event by typing where it says “Add title and time” (ie Office Hours for Joe Smith.).
Add a time for your event by clicking Add time and changing the shown times.
Click More Options.
Choose Add Conferencing.
Then select Hangouts Meet.
Use Add Guests to invite others.
Click Send to send invites to your guests.