It should be noted that in the מועדים וזמנים linked above that was published in 1961, Rav Moshe - * Sternbuch mentions that [ולתפלה, היום מתהלק, עד י״ב שעות שחרית, ומאז מנחה, ומעריב מתפלל סמוך ללילה כרבי יהודה כנל״ד ...]. - * This comment (in () in the original, and [] in the new edition published in 2023) was not brought down in the תשובות והנהגות vol. 1 that was published in 1977 nor in vol. 5. published in 2009. Since it is not clear to me if this + *
It should be noted that in the מועדים וזמנים linked above that was published in 1961, Rav Moshe + * Sternbuch mentions that [ולתפלה, היום מתהלק, עד י״ב שעות שחרית, ומאז מנחה, ומעריב מתפלל סמוך ללילה כרבי יהודה כנל״ד ...]. + * This comment (in () in the original, and [] in the new edition published in 2023) was not brought down in the + * תשובות והנהגות vol. 1 that was published in 1977 nor in vol. 5. published in 2009. Since it is not clear to me if this * constitutes a retraction, the calculations for the start of mincha mentioned in the Moadim Uzmanim was omitted. This * is 12 hours after the start of the day (either {@link #getChatzosHalayla()} in the Polar summer, or {@link #getChatzosHayom()} * in the Polar winter. {@link #getPolarPlagHaminchaTeshuvosVehanhagos()} was included and is the start of the time that @@ -3973,7 +3973,7 @@ public Instant getPolarStartOfDayTeshuvosVehanhagos() { /** * In Polar regions during the period where the sun is above the horizon 24-hours a day, Rav Moshe Sternbuch in מועדים וזמנים ח״ב ס׳ קנ״ה הע׳ א׳ (ח״ד ס׳ ת״א + * "https://hebrewbooks.org/pdfpager.aspx?req=19963&st=&pgnum=316">מועדים וזמנים ח״ב ס׳ קנ״ה הע׳ א׳ (ח״ד ס׳ ת״א * הע׳ א׳ in the new edition) mentions the concept of zmanim based on his {@link #getPolarStartOfDayTeshuvosVehanhagos()}. * This calculates {@link #getPlagHamincha(Instant, Instant, boolean)} as 10.75 sha'os zmaniyos starting 24 hours prior * to the current start/end of the current day. This will be very close to 2.5 clock hours before the start/end of the day.