Prehistory through 2150 -- From the beginning of time until the Enterprise pilot.

Enterprise (& Discovery) -- From 2151 through 2264, the premier of Enterprise, through the first two seasons of Discovery, until the premier of The Original Series.

The Original Series -- From 2265 through 2363, the premier of The Original Series until the premier of The Next Generation.

The TNG Era -- From 2363 and the premier of The Next Generation through 2370, season 7 of TNG and seasons 1 & 2 of DS9.

Voyager through Picard -- From 2371 until the end of Picard, including the events of DS9 beginning with season three, the TNG movies, and the events of the entire Voyager series.

Discovery - Events after Picard until the end of time, including season 3 on of Star Trek Discovery.