This is some basic stuff and mostly obvious at this point but since there has been some confusion I wanted to make this post to clear things up and give it some posterity.

[section=Full-game runs] Timing starts on character select or on "Are you sure" if New Game+ is not unlocked.

Timing ends after you hit a button to remove Mike's last dialogue box. ("Your replacement is out for"- etc.) The dialogue box itself doesn't have to disappear just the text.

[section=Individual Levels] Timing starts when you hit the floor. At the very least it should start before/as you make any inputs coming out of the pizza box. New York ILs start the same as full game runs.

Timing ends when you grab the level end pizza or yoyo.