Some Telus plans start at 9pm for unlimited evenings. But Telus has some cheap plans, here is my current one:

250 daytime mins
caller ID
call waiting
call forwarding
3-way calling
voicemail
unlimited evenings and weekends (6pm)

and now free internet too (although thats more by luck).

for $15/month

My contract with them is ending soon, so I"m going to ask for free telus-to-telus mobile calling if I resign for a year or two again. They are pretty good like that.