jm H®¡ h³Íèãæ^Òbw Ò«xñ±i þKL¡https://youtu.be/0r3XZBqfK-Y please see this. you can see how sun change of position and the day and night have diferent duration on different time of the year..
https://whatsonchain.com/tx/6103c7b46d32590167b87e87422773223a9a1432f906ea417d62f6e5c4a050df