| Month of the year | Labelled on astrolabe |
|---|---|
| 1. January : | IANVARIV9 |
| 2. February : | FEBROARI9 |
| 3. March : | MARCIVS |
| 4. April : | APRILIS |
| 5. May : | MADIVS |
| 6. June : | IVNIVS |
| 7. July : | IVLIVS |
| 8. August: | AVGVST9 |
| 9. September : | SEPTEMB’ |
| 10. October : | OCTOBER |
| 11. November : | NOVEMBER |
| 12. December : | DECEMB’ |
The calendar is of the Western type. numbered every 5 days
and the end of the month NB, February is numbered every 4th
day .The vernal equinox falls on the 13th 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: