'All night' in the Bible

“I regret that I made Saul king, for he has turned away from following Me and has not carried out My instructions.” So Samuel became angry and cried out to the Lord all night.

Immediately, Saul fell flat on the ground. He was terrified by Samuel’s words and was also weak because he hadn’t had any food all day and all night.

all their brave men set out, journeyed all night, and retrieved the body of Saul and the bodies of his sons from the wall of Beth-shan. When they arrived at Jabesh, they burned the bodies there.