In Gonja, Achaŋ is the name of the seventh month of the Muslim calendar as it is locally reckoned. The GILLBT/SIL Gonja dictionary records that guinea fowls are killed and eaten on the 27th of this month, and that achaŋ also means 'guinea fowls'. The month before it is called Achaŋ be Kayɛrbe.
In the Gonja calendar, guinea fowls are killed and eaten on the 27th day of Achang.