The Sarum Calendar for 2020 has been added to Dr William Renwick’s More Documents page. You can download it from there. It begins from 1st January, so if you need the current Advent, you need the final month of 2019. It is in English and follows the Gregorian calendar.
I warmly recommend the rest of this valuable site which is completing the resources we have for the Use of Sarum and its chant.
In case you find the site inaccessible for any reason, here are the links:
 | Johnson Flucker is O… on The Gas-driven Ferrograph |
 | David Llewellyn Dodd… on A Monty Python Sketch? |
 | Stephen K on A Monty Python Sketch? |
| David Llewellyn Dodd… on A Monty Python Sketch? |
 | pilgrimdj1 on A Monty Python Sketch? |
| pilgrimdj1 on A Monty Python Sketch? |
| pilgrimdj1 on A Monty Python Sketch? |
| David Llewellyn Dodd… on Defender of the Faith |
 | Fr Anthony Chadwick on Defender of the Faith |
| Stephen K on Defender of the Faith |
 | Wm Arthurs on Hiatus |
 | Jamie Turner on Flogged and Excommunicated! |
 | Robert Stevens on About Fr Anthony Chadwick |
| David Llewellyn Dodd… on Hiatus |
 | Caedmon on Hiatus |
The Blue Flower 