Timeship

From Memory Alpha, the free Star Trek reference

Timeships are vessels designed to be capable of temporal transit. They are generally capable of space travel as well.

Time travel pods, Wells-class starships, and Aeon-type ships were built for use as timeships. (TNG: "A Matter of Time"; VOY: "Future's End", "Relativity")

The Federation experimented with sending vessels back in time as early as 2268, but timeships were not regularly built or used until after the 24th century. (TOS: "Assignment: Earth"; TNG: "A Matter of Perspective")

In the 23rd century, the USS Enterprise used the light-speed breakaway factor to travel through time. (TOS: "Assignment: Earth") By the 29th century, timeships used both temporal rifts and a temporal displacement drive to travel through time. (VOY: "Future's End", "Relativity")

[edit] List of Known Timeships

Note: the USS Enterprise is included because its mission to 1968 was officially a historical research mission. Other accidental or unsanctioned time traveling ships are not included. These "accidental" timeships include Enterprise (NX-01), Akorem Laan's ship, the USS Enterprise, the USS Bozeman, the "HMS Bounty", the USS Enterprise-C, the USS Enterprise-D, the shuttlecraft El-Baz, the USS Voyager, Quark's Treasure, the USS Defiant, the USS Enterprise-E, Spock's Jellyfish, the Narada and the shuttlecraft SC-4.

Ship Name	Registry	Government/Agency	Type	Commander(s)	Dates	Image
unknown	unknown	unknown	unknown	Lazarus	Distant past (2267)
USS Enterprise	NCC-1701	UFP Starfleet	Constitution-class	Captain James T. Kirk	2268 (1968)
unknown	unknown	unknown	Time-travel pod	unknown, Berlinghoff Rasmussen	26th century (22nd century, 2368)
Aeon	unknown	UFP Starfleet	unknown	Captain Braxton	29th century (2373, 1967)
USS Relativity	NCV-474439-G	UFP Starfleet	Wells-class	Captain Braxton, Lieutenant Ducane	29th century
unknown	unknown	United Federation of Planets	Time-travel pod	unknown	31st century (2152)