I saw the 'too many trees' record video and realized that the time said "15s 530ms", but the in-game timer doesn't show milliseconds (1/1000 of a second), it shows Jiffies (1/60 of a second), so instead of "15s 530ms", it should be "15s 883ms".

There's this handy website to convert it: http://www.kylesconverter.com/time/jiffies-to-milliseconds

You can see it because the right-most timer (the one you thought was milliseconds but actually was Jiffies) never goes 60 or over, unlike millisecond timers which go all the way to 99 or 999.

yeah, that is a known problem we figured since all runs are entered the same it does not really matter. we also have contact to the developer and maybe the ingame timer will be changed to milliseconds in the future, in that case all old runs will be converted thx for that link! might be really helpful in the future