Sun-up

He tells lies from sun-up to sun-down.

Source: tatoeba (9855481)

I dozed off for a while, but along toward sun-up I remembered that Red Chief had said I was to be burned at the stake at the rising of the sun. I wasn’t nervous or afraid; but I sat up and lit my pipe and leaned against a rock.

Source: tatoeba (13136013)

I opened my eyes and looked around, trying to make out where I was. It was after sun-up, and I had been sound asleep. Pap was standing over me looking sour and sick, too.

Source: wiktionary