Sometimes I needed and/or preferred a calendar that would continue date numbers from one month to the next on the same line. I prepared an Excel spreadsheet that would do this. Here is how it looked:
Preparing the calendar in Excel made it adaptable. For instance, I could add columns specifying the week of the year, or the number of days elapsed or remaining. If desired, I could put the second half of the year on the back side of a sheet of paper, enabling me to expand the print on each side. Or another year could be put on the back side.
Calendars can be tricky. I checked this one against another calendar for the years 2000-2020. I suspect, from this, that it would be good to the extent of Excel’s date math, at least for several centuries before and after the present. I posted the spreadsheet for public use in the same locations as my Million-Day Gregorian-Julian Calendar: on Scribd.com, for a PDF version, and at primary and alternate locations for the Excel version.