פירוש על ברכות 58:9

Dimdume hammah has been explained in two ways : (1) "The reddening of the sun," connecting the word with adom, "red"; (2) "The stillness of the sun" (from the root damam), i.e. the time in the morning and evening when the sun appears to stand still or be silent ; so Jastrow.

I.e. as the sun rises and before the moon appears.

Palestine.

This refers only to the afternoon prayers. If he waited for sunset to say the afternoon Tefillah, something might detain him and the night come on.