The application allows you to choose between Sabic or Repsol for the city of Cartagena.
This option will be stored to be remembered and not asked again.
Subsequently, the months of the year are shown; clicking on one of them takes you to the quadrant corresponding to that month, showing all the information on the shifts and lines that make it up. In this way you can know the shift you are on on a given day, always for the year in which the application is developed and updated. You can go forward and backward once you are in the month to know the entire year and the distribution of work.

You can view the quadrant not chosen in the initial option.