Expression: "On Saturday night"

[Thommy]

English Language Tests, Intermediate level

ESL/EFL Test #206 "Prepositions of Time and Date (4)", question 5

......... Saturday night, we went to a great movie and then had supper with the Johnsons.

(a) For
(b) On
(c) In

English Language Tests, Intermediate level

ESL/EFL Test #206 "Prepositions of Time and Date (4)", answer 5

On Saturday night, we went to a great movie and then had supper with the Johnsons.

Correct answer: (b) On
_________________________

why on sunday?

Thommy

[Yankee]

Hi

You need to use on when you have a day of the week or the name of a holiday followed by morning, afternoon, evening, or night

on Monday morning
on Thursday afternoon
on Friday evening
on Christmas morning

Amy