Setting our own duration for meetings

Presently, Zoom has a dropdown of 15-minute increments of meeting duration starting at 15 minutes (15, 30 and 45). 

Can you guys please also have options of 20-minute increments, like 20 and 40? 

I have meetings that I set at 20, and it's a pain that I cannot set my duration at 20 minutes.

Thank you!