Mishna B'rura 91:16 cites a difference of opinion regarding whether one should respond "amen" to the shatz's (leader's) blessing immediately before "Sh'ma" or should, on the contrary, finish saying ...
Shulchan Aruch, OC 236:3: If someone discovered a group that had already read [the evening] "Sh'ma" and is about to say amida [of maariv], then he should say amida with them and then say "Sh'ma" ...
Municipal fireworks displays in the US are often held on Saturday night, just as it is getting dark -- i.e. right at tzeis hakochavim, time for Ma'ariv, Havdalah, etc. Assuming there is a vantage ...
ב"ה I know one isnt allowed to eat after Shkiah on Shabbos. But what about a weekday? For instance what if one started a meal right before shkiah or during bein hashmoshis? My question is prompted ...