Sand Timers on Shabbos

Born and raised in Toronto, Rabbi Aryeh Kerzner is an alumnus of Passaic Yeshiva (R’ Meir Stern) and R’ Sholom Schecter in Yerushalayim. He then learned in Yerushalayim in Kollel Ahavat Shalom (Rav Yaakov Hillel’s Kollel) for several years. During his time in Yerushalayim, he first obtained Semicha from Rabbi Zalman Nechemia Goldberg Shlita, subseq...