The interceptor Lvl3 is supposed to need 20h to research. Alas, when I started researching it it said it would take more than 1d 9h - both inconsistent with what the research time is supposed to be, and inconsistent with the other upgrades of Day 8.
I submitted a bug report, but I thought of posting it also here for other players to check other upgrades in the later days, especially the not so popular ones.
I submitted a bug report, but I thought of posting it also here for other players to check other upgrades in the later days, especially the not so popular ones.