You may choose up to five for each color-coded calendar.

Alternatively, in the left pane, selectEvent Notificationsunder the calendar name.

The other limits are 0 to 40,320 minutes, 0 to 672 hours, and 0 to 28 days.

The Settings menu in Google Calendar

SelectRemove notification(theXicon) to remove an unwanted reminder.

These default parameters affect all events within their respective calendars.

But, reminders you specify individually as you set up a specific event will override your default configs.

Settings in Google Calendar

The “Settings for my calendars” section of Google Calendar

The “Add Notification” button

Notification options in Google Calendar

The All-day notifications settings in Google Calendar

The X for a notification in Google Calendar