So I assume you're not talking about champion maps so the longest map that I did was the hard map Layers. It took me about 3 different days of at least an hour trying to actually finish it. This was a while ago so now it only takes me about 1 hour! (3-4 hours just because I'm bad)
Oceanwaves was the worst for me. It took me about 4 days and I was just stuck on the last bit, I finally got a epearl and just got through it. I tried again and I finished in under 2 hours haha. Just shows the skill level when I first started to now!
Way back when I had just gotten skilled rank, I did my first expert (city) and it took me hours. The entire map up until the last cp (when you can claim the old one from on top of the building) took me maybe 20 minutes, but that last cp took AGES. Keep in mind this was pre-buff, the jump from the slab to the iron trapdoor but that ladder can make it a hh was a nightmare (keep in mind I didn't know anything about momentum at the time don't bully me please D: )
I spent 6 days on the 2nd checkpoint of T-rex and never actually got past it lol. I must have put 20-30 hours on that checkpoint. But an actual map to complete was Celestial Resort which took like 4 or 5 days.
Longest counted time (challenge mode) was my first time on simpsons which took around 3 hours.
But my longest time on a map in general was 7 which took me a week to do, i didn't play though (it took me maybe a total of 6 hours)
Ancient took me like 6 hours to complete when I first started. But I'd say the longest I ever spent on a map was when I first joined the server I tried doing colors and it took me like 3 weeks to finish it ._.
it's only been a week because I would play around 1 or 2 hours a day, and I was also super unlucky. But there has only been 2 cps that I was really stuck on. So I don't need shit. thank you thoo <3