I second this! OP if you need an option, I have had a great experience with ReCalendar - personalized calendar PDFs for ReMarkable tablets. There are a lot of great personalization options, you can write in your own holidays, birthdays, etc. For use on the remarkable, the pdf it generates has navigation within it, so it's easy to jump to a certain date or flip between weeks, etc.
I second this! OP if you need an option, I have had a great experience with ReCalendar - personalized calendar PDFs for ReMarkable tablets. There are a lot of great personalization options, you can write in your own holidays, birthdays, etc. For use on the remarkable, the pdf it generates has navigation within it, so it's easy to jump to a certain date or flip between weeks, etc.