The sun was risen upon the earth when Lot entered into Zoar.
Jesus the Sun of righteousness, may be said to be arisen on the soul, when the faithful enter within his shelter. See Malachi 4:2; Isaiah 32:2
Related Commentaries of Genesis 19:21
Genesis 19:21-23
21 And he said unto him, See, I have accepted theeb concerning this thing also, that I will not overthrow this city, for the which thou hast spoken.
22 Haste thee, escape thither; for I cannot do any thing till thou be come thither. Therefore the name of the city was called Zoar.c
23 The sun was risend upon the earth when Lot entered into Zoar.