What does it mean to send a desk calendar?

Girls give boys calendars:

It should be that they hope that boys will have better plans for their lives and pay attention to the passage of time, or they hope that boys will pay more attention to girls and be able to remember Next is the important day between them!

The boy gives the girl a calendar:

It should be more that he hopes that the girl will understand how much he cherishes the days they are together, and at the same time, he hopes that the girl will Live every day happily with him! (Some calendars have jokes, etc.)

Send desk calendars between friends:

Arrange your time reasonably and pay attention to rest.

The elders give the younger generation a desk calendar:

Let you cherish time and be a person who knows how to plan.