A simple, accurate, solar calender for Earth
This page enables you to create a calendar in either HTML format for on-screen display, or PDF format for printing. You can generate a calendar page for a single month, or for an entire year. The Gregorian date is shown for each day in the calendar.
Data for seasonal markers comes from this web page, and is available for CE years -100 to 4200. The author of that page states that because perturbations are not factored into the calculations, times could be out by up to 20 minutes. (This will have to suffice until I write my own functions to calculate seasonal markers.) Download data