Prepositions Showing Time

at
Example:I arrived at six o' clock.
 I slept at night.

on
Example:I arrive on Thursday.

by
Example:I will arrive by six o'clock.

before
Example:I will arrive before six o'clock.

from
Example:I will be here from Thursday to Friday.

since
Example:I have been here since Thursday.

for
Example: I am here for two days.

during
Example: I will be here during Thursday and Friday.

to
Example:I will be here from Thursday to Friday.

until
Example:I will be here until Friday.

after
Example:I will leave after Friday.