Reckoning "The Very Day"

For background, refer to the study on Daniel 9 – Daniel 9 Verse by Verse

      In Daniel 9:24, the prophet is told 490 years are appointed for the Jews and Jerusalem to accomplish certain things. Verse 25 says those 490 years commencing with the command to restore and build Jerusalem after the Babylonians' demolition decades before.
      The Bible records three commands regarding the restoration of Jerusalem.      We sort out which command Daniel 9:24 refers to by noting the first two commands regarded the temple, not the city. In verse 25, the angel Gabriel told Daniel the command would see "The street shall be built again, and the wall, even in troublesome times," precisely the situation following the decree of Artaxerxes in 445 BC.
      Nehemiah 2 tells us the command to rebuild Jerusalem's streets and wall came in the 20th year of the Persian king Artaxerxes. Gabriel said from that point until the Messiah arrived as Prince, would be 483 years of the 490 years. Then in verse 26, in a foreshadowing of the cross, the Messiah Who had just been heralded as "the Prince (ruler)," would be "cut off," but not for Himself.
      The command to rebuild  Jerusalem came on March 14, 445 BC. Four hundred eighty-three years later brings us to April 6, 32 AD. Here's how we calculate the 483 years …
      A prophetic year consists of 360 days. This is based on calculations determined from several sources. [see Genesis 7:11, 24, Genesis 8:4, Revelation 11:2-3, 12:6, and 13:5] The calendar used by the ancients was based on a 360-day year, but something occurred to Earth's orbit around the sun to alter this to a 365¼ day year. Consider the 360 degrees of a circle and the figuring of time into 60 minutes. Some suggest the near pass of a large celestial body like a comet affected this change and altered the calendar.      On That Day, Jesus rode triumphantly into Jerusalem on Palm Sunday to the praises of His disciples, being heralded as the Messiah-Prince.
      That is why Jesus made that cryptic remark in response to the Pharisees who demanded He silence the disciples. He said, "If they were silent, the very stones would cry out." Jesus said that because of this prophecy in Daniel. Gabriel said from the command to restore Jerusalem till Messiah the Prince would be 173,880 days. That was the day and time. Since the Word of God cannot be broken, if the disciples were silent, God would make rocks spring to life and shout the Praises of Jesus as Messiah the Prince.
      In solar reckoning, a year is 365 days, 5 hours, 48 minutes, and 46 seconds. It is 11 minutes and 14 seconds short of a 365¼-day-year. While there is a leap year every four years, to adjust for that 11:14, any leap year that falls on a century is not a leap year unless divisible by 400. From 445 BC to 32 AD is 476 years. There is no Year 0, so 1 BC to 1 AD is 1 year. Four hundred seventy-six years X 365 days is 173,740 days. Add 116 leap-year days and the days from March 14 to April 6, and you come to 173,880 days.