Guild Wars 2

So It’s Jan 7th, 2015 where I live. I finished the Dec Monthly, got the reward and laurels and stuff. When is the Jan Monthly going to start?

It won’t.
December was the last month with Monthlies.

With the launch of this new system, December will be the last month to include monthly achievements.

https://www.guildwars2.com/en/news/introducing-the-new-daily-achievement-system/

There are no more monthlies – they’ve basically been redesigned to become the new log-in reward system.

“log in rewards” aka “please don’t forget about me” Though i do like it more because trying to grind monthly between work and family is a pain.