Q&A: Time Difference, Sabbath, and Flying
Originally published:
This is an English translation (via GPT-5.4). Read the original Hebrew version.
Time Difference, Sabbath, and Flying
Question
Is it permitted to fly from place A to place B on Friday at 10:30, when there is a time difference of 5 hours between them (so that if, for example, it is 14:00 in place A, it is 9:00 in place B), if the flight lasts 9 hours and 20 minutes?
In other words, when leaving place A at 10:30, we arrive at place B at 14:50, while in place A it would already be 19:50 — meaning it is already the Sabbath there.
Thank you
Answer
The Sabbath is determined by the place where you are. Only where you have no way to determine your Sabbath does it follow the last place where you were.