Example instruction
the morning
Christmas Day
Christmas
summer
an hour
5 o'clock
every day
winter
Friday evening
noon
tonight
May
birthday
12:30
21st century
the afternoon
the weekend
last weekend
autumn
Monday
sunrise
yesterday
April
the 5th of May
midnight
1995
the evening
weekday
this Monday
spring
Tuesday
lunch time
next Sunday
October
Thursday morning
night
today
in
on
at
no preposition