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How do you know when to daven Shachris on a plane?

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  • 2
    Just wondering: Why not when the sun is up?
    – yydl
    Commented Dec 28, 2010 at 2:53
  • 3
    First of all, there is a view that one must follow the zemanim at that location down below, where the sun may not yet be visible. Secondly, it is very difficult to determine when the latest times for Krias Shema and Tefilla occur. For a detailed discussion about this topic, see here: chaitables.com/…
    – Dave
    Commented Dec 28, 2010 at 3:18
  • Cf. judaism.stackexchange.com/questions/8682
    – msh210
    Commented Jul 5, 2011 at 20:41

2 Answers 2

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http://www.chaitables.com/chai_air_eng.php

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  • Thanx, great resource Commented Dec 28, 2010 at 4:57
  • I wonder if somone could make an app of this that would be very worthwhile Commented Dec 28, 2010 at 5:43
  • very cool site!
    – Jeremy
    Commented Dec 28, 2010 at 14:38
  • @SimchasTorah - they do have a Windows-based program. It's surely only a matter of time until they port it to mobile devices.
    – Dave
    Commented Dec 29, 2010 at 2:52
  • I'll definetly have to remember this when I fly from Amsterdam to New York! Commented Nov 29, 2011 at 14:18
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There's online zmanim for flight From MyZmanim.com

https://www.myzmanim.com/airdemo.aspx

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  • Joe B, welcome to Mi Yodeya, and thanks very much for linking this resource!
    – Isaac Moses
    Commented May 4, 2015 at 17:46

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