the time in the morning when the sun appears or full daylight arrives.
"an hour before sunrise"
synonyms: dawn, crack of dawn, daybreak, break of day, sun-up, first light, (early) morning, cock crow; literaryaurora
"the infantry advanced at sunrise"
the colors and light visible in the sky on an occasion of the sun's first appearance in the morning, considered as a view or spectacle.
"a spectacular sunrise over the summit of the mountain"