| Month of the year | Labelled on astrolabe |
|---|---|
| 1. January : | Ianuarius |
| 2. February : | Februarius |
| 3. March : | Martius |
| 4. April : | Aprilis |
| 5. May : | Maius |
| 6. June : | Iunius |
| 7. July : | Iulius |
| 8. August: | Augustus |
| 9. September : | September |
| 10. October : | October |
| 11. November : | Nouember |
| 12. December : | December |
The calendar is of the Western type. Only the last day of the
month is numbered.The vernal equinox falls on the 20th 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: