What is the purpose of the demon information in the calendar?

[Tongoenabiago]

Hello, brothers, I have had difficulty finding information about what the days and demons on the calendar mean.

Today (10/13) I saw on the calendar that it would be the day of the demon FOCALOR. Is that what it means?

Does this mean that it is a good day to talk to him? Or a good day to invoke him, or perform a ritual for him?

 

[Anemos Aiteros]

Yes you can do His Ritual:

Focalor's Power Ritual - JoS Rituals

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josrituals.org

You can do His Ritual also other days of the year, as for every God Rituals.