Sunday
Sunday was the first day of the Human week. 

May 11, 2256, was a Sunday on Earth. Michael Burnham noted that fact when dictating a message that day. ()

When Jean-Luc Picard was young, he and his family would sing songs after Sunday dinner. ()

When Wesley Crusher came on board the  in 2370 and moved into his own quarters for the first time, he told his concerned mother, Doctor Beverly Crusher that he would visit her "in the Old Doctor's Home every Sunday". ()

In an alternate timeline in 2372, Ensign Harry Kim made regular visits to Cosimo's most mornings, but preferred to sleep in late on Sundays. ()

On a Sunday in late 2374 fell the one-month anniversary of Odo's first kiss with Major Kira Nerys. When he booked a holoprogram of the city of Paris circa 1928 for him and her, Quark thought he meant Saturday, which would have been the anniversary of their first date. ()

In an alternate timeline in 2404, Admiral Kathryn Janeway made her regular visits to Tuvok at Starfleet Medical on Sundays. When she instead paid him a visit on a Thursday, he believed her to be an impostor, due to the degenerative neurological condition affecting his judgment. ()

See also
 Sunday decryption sequence

External link
 

de:Sonntag
Days