A weekday is any day from Monday through Friday, the five days when most people go to work or school. When someone says “I can only meet on a weekday,” they mean sometime between Monday and Friday, as opposed to the weekend (Saturday and Sunday).

The term helps us organize time around work and school schedules. Many places follow weekday hours: libraries might close earlier on weekdays than on weekends, movie tickets cost less for weekday matinees, and swimming pools have different hours for weekdays versus weekends. If you're planning something and an adult says “let's do it on a weekday,” they probably mean an afternoon after school or work ends.

Notice that holidays like Thanksgiving or the Fourth of July are still technically weekdays if they fall Monday through Friday, even though many people have those days off. The word simply tells you which day of the week it is, not whether people are working. When you hear “weekday traffic” or “weekday schedule,” it refers to the busier, more structured rhythm of Monday through Friday, when most of the world is at work or school.