Disclaimer: This translation does not guarantee complete accuracy, please confirm with the original page text.
When the Sun travels in its orbit, the day is 18 muhurtas (14 hours 24 minutes) and the night is 12 muhurtas (6 hours 36 minutes). However, when the Sun is at its final periphery (bina), the day is 12 muhurtas and the night is 18 muhurtas. In the month of Shravan, the Sun is located in the Cancer zodiac and travels in the inner periphery. In the month of Magh, the Sun is located in the Capricorn zodiac and travels in the outermost periphery. The difference in distance and speed of the Sun causes the days to be shorter or longer. The two Suns complete one orbit in 30 muhurtas.
**Question 68:** What is Dakshinayan and Uttarayana?
**Answer:** When the Sun is located in the first path (veethi), it is the beginning of Dakshinayan. When it is located in the last path, it is the beginning of Uttarayana. From the month of Shravan to the month of Paush (183 days), the Sun is in Dakshinayan. From the month of Magh to the month of Ashadh (183 days), the Sun is in Uttarayana. The beginning of Dakshinayan marks the beginning of the five rainy seasons (panch varshatmak yug).
**Question 66:** How far does the Sun's heat extend?
**Answer:** The diameter of Jambudvipa is 50,000 yojanas. This is half the diameter of Jambudvipa when the Sun is in the inner path (ubhyantar veethi).