Responsa para sa Levitico 23:3

שֵׁ֣שֶׁת יָמִים֮ תֵּעָשֶׂ֣ה מְלָאכָה֒ וּבַיּ֣וֹם הַשְּׁבִיעִ֗י שַׁבַּ֤ת שַׁבָּתוֹן֙ מִקְרָא־קֹ֔דֶשׁ כָּל־מְלָאכָ֖ה לֹ֣א תַעֲשׂ֑וּ שַׁבָּ֥ת הִוא֙ לַֽיהוָ֔ה בְּכֹ֖ל מֽוֹשְׁבֹתֵיכֶֽם׃ (פ)

Anim na araw gagawin ang gawain, ngunit sa ikapitong araw ay Sabbath ng ganap na pamamahinga, isang banal na pagtitipon; huwag kayong gagawa ng anumang gawain. Ito ay Sabbath para sa Walang-Hanggan sa lahat ng inyong mga tahanan.

Collected Responsa in Wartime

The problem of the changing hours of the Sabbath for changing longitudes is a very complicated one. It has recently become the subject of earnest debate and serious disagreement when the practical question arose as to when the Sabbath should be observed in Kobe, Japan, by the Jews who were exiled to the Far East a number of years ago. There is, first of all, the basic question, whether the law requires the same days be celebrated as Sabbath everywhere in accordance with the verse of Leviticus: 23:3: "It is a Sabbath unto the Lord in all your dwellings," or whether Jews should accept the civil conventions of the international date line, or other date line, if any.
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