Time Prepositions

[myalcin]

which prepositions must be added before time adverbs?i.e:morning,noon,afternoon,evening,night,d ay of the week,holiday,weekend,seasons.

[Dandelion]

which prepositions must be added before time adverbs?i.e:morning,noon,afternoon,evening,night,d ay of the week,holiday,weekend,seasons.

In the first place, these are not adverbs. They are nouns.
Now, to answer your question:
in the morning, at noon, in the afternoon, in the evening, at night, on Monday, on the holiday (meaning a special day when people don't have to work), on the weekend (AmE) at the weekend (BrE), in (the) spring

Also:
at Christmas, at Easter (BUT on Christmas Day)

[Dandelion]

Just one more thing:

on holiday ( BrE - meaning a period of suspension of school or work)
on vacation (AmE - meaning the same thing)