afternoon; p.m.
Refers to the time from noon until evening. Can be used as a noun or adverbially.
会議は午後2時からです。
The meeting is from 2 p.m.
I always get sleepy in the afternoon.
I'll be waiting at the station at 3 p.m.
It started raining from the afternoon.
The temperature is expected to rise through the afternoon.
noon; 12 PM