Rashi: Amidst what came from your initial supplication to tell you, you will know to return and build Yerushalayim.

Malbim: The angel explains to him the calculations of the 70 Shemitos decreed on Yisrael.

Malbim: This will be in Koresh's first year. He let them return, and many did.

Rashi: Time will be given from the Churban until Koresh Melech Paras. Hashem said that he will return and build His city; He called him Mashicho and Negido ? "Ko Amar Hashem li'Mshicho l'Choresh... Hu Yivneh Iri v'Galusi Yeshale'ach."

Malbim: It is as long as the Mashi'ach will rule, i.e. as long as Bayis Sheni stood, that they had a Kohen Gadol anointed with oil ¹ , or a Nasi or king who is called Mashi'ach, and he will command..

Rashi: They will be in seven full Shemitah cycles in Galus before Koresh will come. There were another three years, but since they were not a full Shavu'a, they were not counted. This vision was said to Daniel in the first year of Daryavesh ha'Midi, 70 years after Kivush Yehoyakim, which was 18 years before Churban Yerushalayim. Now was 52 years after the Churban ? for 52 years, no man passed through Yehudah (Yuma 54a) ? seven Shemitos and three years.

Ibn Ezra: Until now were 19 years of Koresh, Achashverosh, and two of Daryavesh; Daryavesh ruled 10 more years, and 20 years of Artachshasta - in all, seven Shavu'im ¹ until Nechemyah came, like it says in Ezra. These are the days of Bayis Sheni.

Rashi: After this time, the city will be rebuilt

Ibn Ezra: These are the years of Bayis Sheni. Malbim ? Bayis Sheni stood only 420 years, i.e. 60 Shavu'im! Here it counts also 18 years from when they first started to build Bayis Sheni; it ceased, and resumed later. It only counts two Shavu'im, but not the extra four years, which are a partial Shavu'a, There were three counts. (a) Seven Shavu'im until Koresh authorized building. This fulfilled Yirmeyah's Nevu'ah of Pekidah "l'Fi Melos l'Bavel Shiv'im Shanah." (b) Two Shavu'im (and four years) until they truly started to build in the days of Daryavesh. This fulfilled what Daniel found, that Pekidah will be 70 years "Lemale'os l'Charvos Yerushalayim ." That count began 18 years later ? the time between Galus Yehoyakim and Galus Tzidkiyah. (c) The 60 Shavu'im are how long Bayis Sheni stood.

Rashi: The streets of the city.

Rashi: They are ditches around the wall to strengthen the city.

Rashi: Those times will be in affliction ¹ , for servitude of the kings of Paras and Nochrim will burden them. Even though 62 Shavu'im and four years remain from the eighth Shavu'a (this vision was said to Daniel in the third year of the eighth Shavu'a after the Churban), only full Shavu'im are counted. There were 70 Shavu'im in all; it says seven and 62, for the eighth Shavu'a was split; neither half was counted.