'Day' in the Bible

Now when Daniel knew that the document was signed, he went into his house (now in his roof chamber his windows were open toward Jerusalem); he continued to get down on his knees three times a day, praying and giving thanks before his God, as he had been doing previously.

Then they answered and said before the king, “Daniel, who is one of the exiles from Judah, does not pay any attention to you, O king, or to the injunction which you have signed, but keeps praying [to his God] three times a day.”

“Righteousness belongs to You, O Lord, but to us confusion and open shame, as it is this day—to the men of Judah, to the inhabitants of Jerusalem, and to all Israel, those who are nearby and those who are far away, in all the countries to which You have driven them, because of the [treacherous] acts of unfaithfulness which they have committed against You.

“And now, O Lord our God, who brought Your people out of the land of Egypt with a mighty hand and who made for Yourself a name, as it is today—we have sinned, we have been wicked.

On the twenty-fourth day of the first month, as I was on the bank of the great river Hiddekel [which is the Tigris],

Then he said to me, “Do not be afraid, Daniel, for from the first day that you set your heart on understanding this and on humbling yourself before your God, your words were heard, and I have come in response to your words.