Actually,
In years imperial...
CT is 1100 to 1110, Spinward Marches, Solomani Rim, and 3 alien sectors, plus 5 additional subsectors. Plus, the atlas - but the atlas does NOT include UWPs for anything.
MT is 1116 to 1135 (1120 to 1135 is Hard Times), domain of deneb, vland sector, hinterworlds sector, diaspora sector, and a vargr and aslan sector each. (Counting DGP releases as well as GDW)
TNE is 1200 to 1240 Spinward Marches and the Reformation Coalition
T4 is 30 to 90, and covers the whole atlas... but has multiple issues.
T20 is 990 to 1010 or so, and focuses on the Gateway domain.
GT is 1115-1130+, focuses on the Marches, but lacks the rebellion; it also has lots more details, far more setting detail than any other edition, including a bunch of small contradictions.
GTIW is about –2700 Imperial.
MGT is 1105 and to date has 3 imperial sectors I'm aware of. It's sticking to replication of CT materials setting wise, but making changes that contradict both CT and GT at times.
T5 has no official time setting.
HT has no specific time setting, but has specific adaptations for 1105-1240
There is also a t20 supplement - 1248 - which covers 1248-to the 1250's.