Reply To: Sof Zman Tefillah Home › Forums › Decaffeinated Coffee › Sof Zman Tefillah › Reply To: Sof Zman Tefillah April 9, 2021 7:01 pm at 7:01 pm #1963804 ujmParticipant Though we cannot discount that the rabbonim who organize very late minyanim in their Bais Medrash have a halachic source permitting so.