Memory Alpha holds the official timeline:
http://memory-alpha.wikia.com/wiki/Timeline
Wikipedia has a printable version:
https://en.wikipedia.org/wiki/Timeline_of_Star_Trek
Memory Beta:
http://memory-beta.wikia.com/wiki/Timeline
Star Trek Expanded Universe:
http://stexpanded.wikia.com/wiki/Timeline
And, here is an Unofficial Version:
http://myweb.tiscali.co.uk/patriadomus/pder/startrek/timeline/timeline.htm
The new series is suppose to start well before 4 Yrs War/Axanar, but that could change. CBS seems to have a desire to screw up the Axanar project, which means they could totally hose this section of the main timeline just to piss off Alec Peters and his supporters. Axanar and the 4 Years Wars with the Klingons takes place around the years 2245 to 2262 with a lot of variations from books, RP games and the little bit in the official canon (TOS - 3s/16epi.: "Whom Gods Destroy")
http://memory-alpha.wikia.com/wiki/The_Four_Years_War 2247-2250 (which is a new update - but based on a roleplay game developed years earlier.
http://memory-beta.wikia.com/wiki/Four_Years_War I saw this post years ago, placing the war squarely in the 2250's, which would end with the launch of the Constitution (Conny) class ship.
http://stexpanded.wikia.com/wiki/Four_Years_War Expanded Universe states a number of variations.