2
votes
0answers
35 views

Travel and Shacharit

I'm flying westward in the morning. I don't think I'll have enough time to pray shacharit before I take off, and don't wish to do so en route. I should land with enough time to pray shacharit before ...
3
votes
1answer
168 views

Is visiting Antarctica permitted for a Jew?

Antarctica can have very short days or very short nights. As discussed elsewhere on this site, finding the right time to pray can be difficult. Is it permissible to visit places like this?
1
vote
1answer
73 views

Kabbalos Pnei Rabo

That which it says in the Gemorah (Rosh Hashana 16b) that one has a obligation of "kabbalos pnei rabo" (to go see ones rebbe) on holidays - when is the obligation? Is there an obligation every day, or ...
13
votes
4answers
2k views

Fast days and time zones

If I fly westward on a fast day, and travel through one/several time zone/s, thereby going back in (clock) time, must I then fast until it ends in my current time zone? What if I fly eastward, thereby ...
4
votes
1answer
198 views

Alos Hashachar on a flight from Israel to Toronto

What time will a person cross alos hashachar (first light of the sun) if he is flying from Israel to Toronto on the night of the fast of the 17th of Tammuz? The flight leaves Israel at one in the ...
8
votes
1answer
2k views

Davening on Plane Zmanim

How do you know when to daven Shachris on a plane?
15
votes
6answers
624 views

Halakhic International Date Line issues

According to halakha, where is the international date line? More specifically, I have heard that some people say you should observe Shabbat on Sunday in Japan & New Zealand and/or on Friday in ...