How is this still not possible?

keyboard first - but ideally, neither! Ideally you put the time in and it just applies it without a button or a keyboard confirmation. If you delete, it deletes it. Kind of like typing this message right now - i don't need to hit enter after every tap of the keyboard

Option A

Option B

Option A

Option A

Definitely option b. If you enter the wrong time you can still edit and delete it so I don’t know why the buttons would be necessary

Option A, I imagine B potentially causing unnecessary notifications sent to assignees.

Agree with Michael you kind of need both ... B is fast but you need A as a fallback

Option B helps keeps inputs quick but having the buttons from Option A as a fall back would be helpful!