here is the modification I just wrote into the rules :

"Time ends when the loading icon in the bottom right corner disappears, right before the diary fades in Please make sure some part of the loading icon is always visible in your video submission ! (for example if livesplit is in the bottom right corner of your recording make sure it doesn't hide the icon entirely or make the timer background transparent otherwise)"

I made this change after watching Oknia's wr run and realizing that the diary fading in was hard to time precisely, so I think using this visual cue is better while staying true to the original timing since the end of the loading screen should be exactly when the diary starts fading in (even though all you can see at first is a black screen)

tell me if any of this seems confusing or poorly worded