| Month of the year | Labelled on astrolabe |
|---|---|
| 1. January : | INAVARI9 |
| 2. February : | FEBRV: |
| 3. March : | MARTI9 |
| 4. April : | APRILIS |
| 5. May : | MAIVS |
| 6. June : | IVNI9 |
| 7. July : | IVLI9 |
| 8. August: | AVGVST9 |
| 9. September : | SEPTEMB: |
| 10. October : | OCTOB: |
| 11. November : | NOVEMB: |
| 12. December : | DECEMB: |
The calendar is of the Western type. Every tenth day and the
end of the month. Only the end of the month is numbered with
a numeral; the 10th and 20th are indicated by one and two
hash marks..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: