This Daf Yomi Thought is dedicated in honour of the upcoming wedding of Yonah Dorfman to Laurel Dayan. May they have many years of good health and happiness together. Mazal-Tov! 

In Talmudic times, it was common for one to wear tefillin all day long. As the Torah does not limit its observance in any way, there would seem to be no reason to limit time spent wearing them to a few minutes a day. Even the exemption from wearing tefillin at night and on Shabbat is subject to much Talmudic dispute, with many asserting that Shabbat z’man tefillin hu (“Shabbat is a time for [the wearing] of tefillin”).