Task: I want to be on time at every calendar event, so set the event notification to 15 minutes earlier .
Steps:
Open the Calendar app
Click on the three bar menu button at the top left corner of the screen
Go to the settings of the app
Click on the Events option of the cole2dbwpersonatest2@gmail.com
Click on the 30 minutes before notification option
Select the 15 minutes before notification option