The requirement and status of Tosefes Shabbos

Here at the Kollel, we really celebrate our freedom every day. “There is no free person like one who is involved in Torah study.” (Pirkei Avos, 6:2) That said, what better way to express our appreciation for the religious liberty this country provides that to spend a day off from work studying Torah.

Tosefes Shabbos is the requirement to add on to Shabbos, Yom Tov, Yom Kippur, and Shemita as well, in their onset and departure. Rabbi Yehuda Hendler’s shiur opened up insight into the exact nature of this addition.

Is there an extension to the Shabbos itself, or is it a personal acceptance to begin the laws of the coming day earlier?
What are the practical differences that result from this question?
When does Tosefes Shabbos begin?
Does Tosefes Shabbos need a conscious acceptance, or is it automatic?

For all of this discussion and more, listen to Rabbi Hendler’s shiur below, and follow along with the sources here.