When?

night shift
the work shift during the night (as midnight to 8 a.m.)
 
Boxing Day
first weekday after Christmas
 
bimillenary
the 2000th anniversary (or the celebration of it)
 
night
the time between sunset and midnight
 
Jumada I
the fifth month of the Islamic calendar
 
drought
a prolonged shortage
 
compensatory time
time off that is granted to a worker as compensation for working overtime
 
1850s
the decade from 1850 to 1859
 
furlough
a temporary leave of absence from military duty
 
Margasivsa
the ninth month of the Hindu calendar
 
Germinal
seventh month of the Revolutionary calendar (March and April); the month of buds
 
semicentennial
the 50th anniversary (or the celebration of it)
 
Muharram
the first month of the Islamic calendar
 
payday
the day on which you receive pay for your work
 
evening
the early part of night (from dinner until bedtime) spent in a special way
 
Independence Day
a legal holiday in the United States
 
long run
a period of time sufficient for factors to work themselves out
 
hereafter
life after death
 
jubilee
a special anniversary (or the celebration of it)
 
fete day
a day designated for feasting
 
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