Quote from admin on 11 May 2021, 6:29 pm

You'll have to go through from Sun day to Saturn day.

 

Quote from Deleted user on 13 May 2021, 11:44 pm

Thanks for the hint, although I already found the sun and also know our solar system and could assign the planets to the days, I had my problems with this puzzle, but finally I solved it. Another hint from me, which finally brought me to the goal ,[spoiler]do not add or multiply.[/spoiler] "Plan it" gives [spoiler]the count of this kind of day.[/spoiler]