If a fast day which normally falls out on shabbos is pushed off, such as the 17th of Tammuz, and a person fasts on that shabbos for another permissible reason, such as a taanis chalom (fast for having ...
A person is permitted to perform a taanis chalom (fast for having a bad dream) on shabbos, but is supposed to fast a second time to compensate for having fasted on shabbos (Shulchan Aruch, Orach ...
I have seen references (1, 2) to a saying from the holy Rebbe of Zitoshev that "If a person drinks wine on Purim the way he is commanded it is the same as if he fasted twice from Shabbos to ...
Is it permitted to fast on Erev Shabbos or Erev Yom Tov? I've heard about people taking on fasts until chatzos, but no later. What is the halacha on this?
This year Asara B'Teveis came out on a Friday. Suppose you would Daven Mincha before Plag and Kaballas Shabbos right after Plag and come home when it is still light outside, would you be allowed to ...
Are there different shitos for when fasts end? (Similar Motzei Shabbos, when some people wait 72 minutes past shkiya to do melacha, where other people wait less.)