How do I change the increments to 50-minute intervals in Google Calendar?

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1. Open Google Calendar in your web browser.
2. Click the gear icon in the top right-hand corner to open the settings menu.
3. Scroll down to Event settings, and adjust the Default duration to 60 minutes.
4. Check the checkbox next to Speedy meetings to adjust the duration to 50 minutes.
5. Your changes should be saved automatically.