Silmia
| Silmia | |
|---|---|
| Native name | ࡑࡉࡋࡌࡉࡀ (Classical Mandaic) | 
| Calendar | Mandaean calendar | 
| Month number | 5 | 
| Number of days | 30 | 
| Season | abhar (spring) | 
| Gregorian equivalent | November / December | 
Ṣilmia (Classical Mandaic: ࡑࡉࡋࡌࡉࡀ), alternatively known as Siwan (Classical Mandaic: ࡎࡉࡅࡀࡍ), is the fifth month of the Mandaean calendar.
Silmia, which literally means 'sculptures',: 210 is the Mandaic name for the constellation Gemini. It currently corresponds to November / December in the Gregorian calendar due to a lack of a leap year in the Mandaean calendar.