In/at/on

(...) nine o'clock

• at

• on

• in

(...) half past three

• at

• on

• in

(...) the weekend

• at

• on

• in

(...) night

• at

• on

• in

(...) the morning

• at

• on

• in

(...) the afternoon

• at

• on

• in

(...) the evening

• at

• on

• in

(...) my free time

• at

• on

• in

(...) Monday

• at

• on

• in

(...) Thursday

• at

• on

• in