I used to take regular nightshifts in the previous two control rooms I worked in. The science/payload control centres work nightshifts, remote controlling science while astronauts sleep, and so does the Flight Director and STRATOS. Since I became Eurocom though, we’re only on console when the astronauts are awake, as there’s noone to talk to when they sleep. They work on GMT (1 or 2 hours different from Central Europe depending on daylight savings) so – after 5 years of constantly changing my circadian rhythm – no more nightshifts! Eurocoms can take them still but barely ever – just on special occasions like when the Soyuz docks or undocks in the middle of the night.
Poor NASA and JAXA guys though – thanks to the timezone they’re always working prime time nightshifts!