Shulchan Aruch 489:1 says that after Maariv of the second night of Pesach we begin to count Sefiras HaOmer. The Mishneh Brurah there in note 2 says that one should count before "Aleinu" because "col ...
While researching an answer to this question I stumbled across the term "חצות האמצעי". What does it mean? Does it refer to halachic midday, i.e. halfway between netz hachama and shkias hachama, or ...
Since it is still permissible to do melacha (work forbidden on shabbat) including lighting shabbat candles until shki'a (sunset), which is 18 minutes (or 40 minutes in Jerusalem) following ...