When is the correct time to daven maariv? Why is there no repetition of shmoneh esrei for maariv? Must women daven maariv? The chiyuv to daven, Plag HaMincha, and the dispute regarding the correct time to daven maariv.
About Bein Hashmashot, the impact on important mitzvot, how will it affect the time of the bris? Dovening Minha, Shabbat, Rosh Hashana, the Gra and Rabbeinu Tam.