About the time the clocks change for the season, there is always an issue at the early early minyan about when to put on tallis and tefillin. In a few weeks of the year, that time can come 5 - 15 minutes after the minyan's regular start time. Our rabbi instructed us that because the minyan exists for people who have to get to work at a certain hour, they may put on tallis and tefillin without a bracha and then when the time comes, they should reset their tallis and tefillin and make the appropriate blessings, then follow up with Shema. What is the source for this heter? Also, may retired or unemployed men join this minyan if not needed for a quorum? Or are they barred because the heter does not apply to them?
See לוח עזרת תורה in the name of Horav Henken OBM where he permits the early Minyanim to put on Talis & Tefillin after Alois. My assumption is that it is derived from the Halacha that one who walking (not riding) may put on Tefillin before Mesheyakir (see SA Siman 30:3) and as far as Talis see Siman 18:3 in Ramah that if one puts on Talis after Alois the Minhag is like the opinion that permits saying then a Beracha.