Hell no, i barely can fit in pvp hours 6-11pm in my busy schedule on the pve-c server i play on, shortening the window would kill the game for those who play on pvec servers.
Because i for one dont like pve servers and i dont like pure pvp servers because of base damage and raiding.
But ive killed plenty of folk on my server and they ask why i kill them and why i dont join a pvp lol. Simply reply and tell them, why dont you play on a pve server then if you dont want to be killed.
Best solution is to remove pve servers and merge them into pve-c servers. Most pve players can avoid pvp hours. And then the only difference between the two server types is base damage on/off.