| Month of the year | Labelled on astrolabe |
|---|---|
| 1. January : | IENVARIVS |
| 2. February : | FEBRVARIVS |
| 3. March : | MARCIVS |
| 4. April : | APRILIS |
| 5. May : | MADIVS |
| 6. June : | IVNIVS |
| 7. July : | IVLIVS |
| 8. August: | ΛGVSTVS |
| 9. September : | SETENBER |
| 10. October : | OCTVBER |
| 11. November : | NOVEMNBER |
| 12. December : | DECENBER |
The calendar is of the Western type. Numbered every fifth 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]Note the unusual spelling of May
The calendar is labelled: