| Month of the year | Labelled on astrolabe | 
|---|---|
| 1. January : | JAN | 
| 2. February : | FEB | 
| 3. March : | MAR | 
| 4. April : | APR | 
| 5. May : | MAY | 
| 6. June : | JUNE | 
| 7. July : | JULY | 
| 8. August: | AUG | 
| 9. September : | SEPT | 
| 10. October : | OCT | 
| 11. November : | NOV | 
| 12. December : | DEC | 
      The calendar is of the Western type. Every fifth day and the
      end of the month.The vernal equinox falls on the 21th 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: