"Afternoon session" refers to a specific period of time in the afternoon when activities or events take place. It usually follows the morning session and precedes the evening or night activities. Full definition
There are 4 - hour morning and afternoon sessions at different times each day to accommodate student needs to employment, family responsibilities, or vocational training. (mycroschoolgainesville.org)
We made a judgment call to reduce our exposure to the market due to the negative price action in the early afternoon session. (morpheustrading.com)
The program is held concurrently at six elementary schools, and divided into morning / afternoon sessions based on age. (foxvalleyparkfoundation.org)