"The fast of the Fifth (month, Av)" is not given a date in the Book of Zechariah. It was established by the Babylonian Jewish community following the destruction of the First Kingdom. Was it established on the day the TEMPLE was burned down? Probably not. in 2 Kings 25:1, the destruction of Jerusalem started on the 7th of Av. In Jeremiah 52:12 this event started on the 10th of Av. If the event was an occasion for a fast, the scribal error in the two parallel passages would not have occurred. Everybody would have known the date and the error would have been corrected instantly. Strangely, Josephus (in War) tells of the destruction of the 2nd Temple, which was burned down on the 10th of Av. The 9th is a mistake by the Rabbis who were not there and did not have the exact date. So when did the fast take place? Probably on the FIRST of the month. When you don't have a precise date in the post-exilic period when dates became common, "the month" stands for the first of the month. Some support: 1. Ezra (7:2) reaches Jerusalem on the 1st of Av. The various dates and details of his Aliya are historically significant. 2. Yerushalmi Taanit (4:5) claims that the destruction took place on the 1st of Av, and the 9th is a mistake due to the confusion of the time. 3. Josephus in Antiquities also claims that the First Temple was destroyed on the 1st of Av. Don't you think it is time to fix this error?
Israeli justice minister: Pollard will be released November 20 (Haaretz)
from the article: Dreaming of the Third Temple in a conflicted Land of Israel