Answer:

week

Answer	Crossword Clue
WEEK	168 hours
WEEK	Half a fortnight
WEEK	40 hours, to some

WEEK	Calendar row
WEEK	Time between paychecks, usually
WEEK	Sweeps ..
WEEK	Calendar period
WEEK	Pay period
WEEK	It starts on Sunday
WEEK	Word with day or night
WEEK	Quarter segment

WEEK	Monday through Sunday
WEEK	Seven days in May, say
WEEK	The Beatles' "Eight Days a ..."
WEEK	Calendar line
WEEK	Half of a fortnight
WEEK	Calendar interval
WEEK	Monday to Sunday
WEEK	Time period

WEEK	It lasts for days
WEEK	"Eight Days a ..."
WEEK	Seven days
WEEK	June 13- June 20, e.g.
WEEK	It ends on Saturday
WEEK	Christmas ..
WEEK	The Beatles' "Eight Days a .."
WEEK	Common pay period

WEEK	Pay period, often
WEEK	Pay period. perhaps
WEEK	Wall-calendar line
WEEK	Line on a wall calendar
WEEK	Worker's pay unit
WEEK	Time between two Times
WEEK	Row of seven boxes
WEEK	It lasts just over 10,000 minutes

WEEK	Brotherhood ....
WEEK	Hebdomad.
WEEK	Period of time.
WEEK	Work period.
WEEK	Time period.