I have searched this Mi Yodea site extensively and can find no references. I am almost positive that this is not a duplicate, or answered somewhere else.Thank you.

I use the Halachic Times App (Halachic Times by Moshe Waisberg {developer [email protected]})

I have written to the developer and asked the question on the APP itself., and received no answer from him

The exact sequence is: Twilight; Nightfall; Midnight Guard-First Watch; Midnight; Morning Guard-Third Watch. Sunrise, and the earliest time for SHEMA are given;

MY QUESTION: (While interesting) HOW, and WHY, are these times relevant to us today; and WHY do we need to know them?

  • Isn't there something in Talmud Brachot that relates this to shifts that were at the Bet Hamikdash?
    – DanF
    Jun 15, 2018 at 14:47
  • 1
    @DanF [It's on Berakhot 3a, but my related comment was deleted] Jun 16, 2018 at 21:18
  • @DanF thank you was most helpful to my understanding of these Zmanim Jun 17, 2018 at 10:01
  • @Kazibácsi Since you located it, why not summarize and post as an answer?
    – DanF
    Jun 17, 2018 at 15:50
  • 1
    @DanF There's an accepted answer 'וגו Jun 18, 2018 at 9:07

1 Answer 1


It might be referring to when the angels in heaven switch guard posts, which is a time when heaven is very open to accept tefilos on the chorban beis hamikdash and the galus. This happens at every third of the night.

Source: Shulchan Aruch, Simon Aleph, Siph Beis.

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