social jet lag

social jet lag
 n.— «The result: owls just don’t get the light they need to entrain their clocks to office hours. Worse, because they have been trapped inside all day, the tendency is to sneak out after work to enjoy the last of the daylight. All this does is reinforce the late body clock. This means that well over half the population is effectively suffering from jet lag—even if they catch the bus to work. Roenneberg calls it social jet lag.» —“Bad habits…that could help you get ahead” by Helen Phillips New Scientist Mar. 24, 2006. (source: Double-Tongued Dictionary)