This 2 overviews above are wrong cause ‘they’ used orbit data –around the sun– to calculate how long a planet was in a gate or line, but the movement around the Rave Mandala wheel is an orbit –around Earth-.

So I did some calculations and came up with this:

Mercury as short as 358 days and as long as 405 days, on average 366 days.
Duration in one Gate: ~5.7 days
Duration in a Line: ~22.9 hours

Venus as short as 293 days and as long as 410 days, on average 369 days
Duration in one Gate: ~5.8 days
Duration in one Line: ~23.1 hours

Mars as short as 528 days and as long as 712 days, on average 679 days.
Duration in one Gate: ~11 days
Duration in one Line: ~42.4 hours

maybe 64Keys were right in their overview: