There are halachic sources that discuss the importance of davening shemona esrei at netz (at sunrise), some of which state that it is preferable to daven at netz over davening with a minyan (at least for those accustomed to davening at netz).

When davening with a minyan around netz, how precise do we consider the categorization of "davening netz?" In other words: Do we attempt to be as arbitrarily precise as possible, or do we assume a margin for "visible netz," seeing as historically they didn't have the same ability to keep time during the gemara?

In terms of practical application, would it be preferable for one to start davening shemona esrei at netz even if it entailed lagging behind or running ahead of the minyan they are presently attending?

  • @doubleaa thanks. I'll look into those. My Google-fu failed me... :) Apr 17, 2015 at 21:47
  • @DoubleAA the last one seems to imply that as long as you're getting kaddish, kedushah, etc., then there's no problem running ahead IF you are accustomed to davening netz. What if you aren't, but the opportunity presented itself? Apr 21, 2015 at 9:57
  • Note that cutting it overly close risks beginning before nets. This is due to human error, imprecise timepieces, and the inherent impossibility of exact zemanim predictions, due to factors like atmospheric conditions.
    – mevaqesh
    Jan 3, 2017 at 16:32
  • 1
    @EzraHoerster That doesn't answer the question of how precisely we judge netz. If the minyan will get to S"A two minutes after netz as precisely calculated, should I run ahead? or is that assumed to be within the margin of error? If it's a question of human perception, what about being half a minute "early?" Jan 10, 2017 at 12:49


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