I see Google tried to 'address' this by having an option to make meetings go 5 minutes less than the "full" standard length. 30 minutes becomes 25, the hour mee

I see Google tried to 'address' this by having an option to make meetings go 5 minutes less than the "full" standard length. 30 minutes becomes 25, the hour meeting is 55 minutes. My experience, which matches exactly what I would expect from a technological solution to a people problem: Nobody cares, meetings still go 5 minutes too long instead of ending 5 minutes early. If at your company nobody keeps the time to the regularly scheduled time, nothing will change! It takes people actually keeping the time box of the meeting to change any of this. Be the guy that says "2 minutes left" 3 minutes before the end of the meeting. End your own meetings early by saying "running up on the time box, 2 minutes left" when it's 5 minutes to the end of the meeting and actually ending it. If nobody does that, nothing will change.