Toffer remade new speeds from scratch.Wait so if you didn't make the 20K turn speed, who did?
And can you understand the difference between validly having an opinion, and enforcing that opinion on everyone?
Are you kidding? I have 51 day turns because I'm in the "Industrial" segment of the calendar (on Eons). I can't believe that a wonkier calendar than yours exists.
Also calendar is good - its based on tech tree.
On eons you should get one tech per 16 turns on average
On 4000th turn tech leader should be in Medieval era, 8000th turn - Atomic era, 12000th turn - Nanotech era approximately (Eons speed).
By 16000th turn you should reach end of tech tree.
You would need much more steps to make calendar go in "round" time steps while trying to fit tech tree.