| Month of the year | Labelled on astrolabe |
|---|---|
| 1. January : | IANVA |
| 2. February : | FEBRV |
| 3. March : | MARCI9 |
| 4. April : | APRI |
| 5. May : | MAI9 |
| 6. June : | IUNI9 |
| 7. July : | IVLIV9 |
| 8. August: | AVGV |
| 9. September : | SEPTE |
| 10. October : | OCTO |
| 11. November : | NOVE |
| 12. December : | DECEN |
The calendar is of the Western type. Numbered every tenth day
and the end of the month..The vernal equinox falls on the
11th day of March. [N.B: Date is decimal as date of vernal
equinox on some astrolabes can be measured to within 0.25 of
a day]
The calendar is labelled: