法苑珠林 42.21

42.21

又十誦律云。有閻浮比丘。至西拘耶尼用閻浮提時。拘耶尼比丘往餘三方亦如是。若此間宿則用此間時。若在彼宿則用彼間時。餘三方亦爾。故摩德勒伽論問。頗有非時食不犯耶。答曰有。若住北欝單越。用彼食時不犯。餘方亦爾。若在閻浮日正午時。北方是夜半。東方是日沒。西方是日出。餘方互轉可知。

Furthermore, the Sarvāstivāda-vinaya states: "When a monk of Jambudvīpa travels to Aparagodānīya, he follows the time of Jambudvīpa; when a monk of Aparagodānīya goes to the other three continents, it is likewise. If one stays overnight here, one uses the time of this place; if one stays overnight there, one uses the time of that place. It is the same for the other three continents." Therefore, the Mātṛkā-śāstra asks: "Can one eat at an improper time without committing an offense?" The answer is: "Yes. If one resides in Uttarakuru and follows their mealtime, one does not commit an offense. The same applies to the other continents. When it is noon in Jambudvīpa, it is midnight in the north, sunset in the east, and sunrise in the west. The mutual rotation of the other continents can be understood from this."