|2037 2038 2039 2040 2041 2042 2043|
|2010s 2020s 2030s 2040s 2050s 2060s 2070s|
|20th century - 21st century - 22nd century|
- Seaquest II-class submarine UNS Accord commissioned; Guinevere de Lesseps, commanding. (Star Trek: Accord "The USS Accord Fictional Timeline v. 3.0")
- September 2 - Sandra Sloane and Brooks Haynem are returned from captivity on the Paradise planet and are allowed to attempt to reintegrate into society on the Enterprise (In Between Days: The Three of Us).
- September 5 - Charles Tucker III and T'Pol wed in a modified Vulcan ceremony. Phlox cures the Ikaaran genetic wasting disease, the decline. A planet found in the Delphic Expanse, orbiting a failed Xindi sphere, is named Speakeasy (In Between Days: Everybody Knows This is Nowhere).