Definicja major tick mark
The short lines placed at regular intervals on the time axis and at right angles to it.
The major tick marks are the larger markings on the axes and the minor tick marks are smaller. Being major and minor has nothing to do with where they are placed in relation to data points. They give you a better overview of the time axis and help you to see time periods at a glance.
Słownik i definicje SAPa na M.