Guild Wars 2

When does the time run out for the monthly achievements? And what achievements would be the easiest to get in a few hours of playtime?

If you open your Achievements window and click on Monthlies, there’s a countdown of how many hours are remaining for your to complete them.

Monthly salvage kit can be bought. If you have skill point scrolls stashed, there’s skill point amasser. If you’ve been doing the daily, monthly completionist. You can farm the bloody prince mini dungeon (roughly 3 minutes each – have to wait for the end popup) for dungeon participation.

Champion slayer can be quick if you can catch an event like Tequatl and tag them all. One of the level 10 Sylvari personal stories spawns ~10 low health champions that you could farm.

Monthly WvW kills if there’s zergs active.

Puzzle jumper takes about an hour if you’ve done them before.

Thank you for your help!
I managed to finished the Monthly half an hour before the time ran out, mostly by farming dolyaks (as events) in WvW and the 50 kills came fast when I jumped on a train.
Phew.