| Calendar: | Mandaean calendar |
| Num: | 1 |
| Days: | 30 |
| Season: | sitwa (winter) |
| Gregorian: | July / August |
| Holidays: | Dehwa Rabba (Daula 1) Feast of the Great Shishlam (Daula 6) |
| Prev Month: | Gadia |
| Next Month: | Nuna |
Daula (ࡃࡀࡅࡋࡀ), alternatively known as Šabaṭ (ࡔࡀࡁࡀࡈ),[1] is the first month of the Mandaean calendar.[2] The month begins with Dehwa Rabba, or New Year's Day. The Feast of the Great Shishlam is celebrated on the sixth day of the month.[3]
It is the Mandaic name for the constellation Aquarius.[2] It currently corresponds to July / August in the Gregorian calendar due to a lack of a leap year in the Mandaean calendar.