Kimo has made a discord server for his games and he made channel for Jump Only speedrunning

https://discord.gg/yej9DWSXaG

Time starts the frame the character moves and time ends when character sees world complete in world runs. In 49 levels, it's when you touch the crown and it starts moving.

You can use this for timing: https://amineelbaghdadi.me/speedrun-timer/index.html