A more thorough explanation:

JOUR

jour (zhoor), n. [French] Day. For example, jour en banc means a day in court.

The term jour is a French word that means "day". It is often used in legal contexts, such as in the phrase jour en banc, which means a day in court. This term is used to refer to a specific day when a court hearing or trial takes place.

• Today is a beautiful jour for a picnic.
• The judge scheduled the next jour en banc for next month.
• She took a jour off from work to go to the beach.

These examples illustrate how the term jour can be used in different contexts. The first example uses it to refer to a beautiful day for a picnic. The second example uses it in a legal context to refer to a day in court. The third example uses it to refer to a day off from work.