You don’t have to open reminders specifically, or go right to your calendarGoogle will handle the rest.
Google Operating Systemexplained how this works.
you might even click to have Google Now remind you on your mobile machine.
From there, you’ll get a default appointment for the next half-hour, all set to go.
If you’re using Chrome and have voice input enabled, they’ll work using your voice as well.
Hit the links below for more examples.
Create Google Calendar Events in Google Search| Google Operating SystemCreate Reminders in Google Search| Google Operating System