{"id":6158,"date":"2010-01-11T02:00:25","date_gmt":"2010-01-11T00:00:25","guid":{"rendered":"https:\/\/ph.yhb.org.il\/en\/?p=6158"},"modified":"2018-05-24T11:29:37","modified_gmt":"2018-05-24T08:29:37","slug":"02-11-02","status":"publish","type":"post","link":"https:\/\/ph.yhb.org.il\/en\/02-11-02\/","title":{"rendered":"02 – Calculation of the Morning Times"},"content":{"rendered":"
According to many, the time difference between amud hashachar<\/i> and netz hachamah<\/i> in Israel is the time it takes to walk a distance of four mil<\/i>, which is approximately 72 minutes. This means that in the months of Nisan or Tishrei, 72 minutes pass from the time the east lights up until the time the sun rises.<\/p>\n
It is important to understand that the calculation of this time changes according to the seasons of the year. During the days of Nisan and Tishrei (beginning March 5th<\/sup> and October 5th<\/sup>), the duration of the sun\u2019s ascent is shortest, and the sun rises 72 minutes after amud hashachar<\/i>. However, during the winter, for reasons which cannot be outlined here, the duration of the sun\u2019s ascent continues to lengthen until, at the height of winter (December 22nd<\/sup>), 78 minutes pass from amud hashachar<\/i> until netz hachamah<\/i>. In the summer, the time continues to extend even longer until, at its height (June 22nd<\/sup>), 88 minutes pass from amud hashachar<\/i> until netz hachamah<\/i>. In order to determine the precise time of amud hashachar<\/i> according to this method, one must calculate the time that the sun will reach 16.1 degrees below the horizon every day \u2013 and that is the time of amud hashachar<\/i>.<\/p>\n
These calculations are based on the opinion that amud hashachar<\/i> begins when the eastern sky is slightly illuminated. However, according to the opinion that amud hashachar<\/i> starts when the first light in the east emerges, indeed its time is earlier, when the sun reaches approximately 17.5 degrees below the horizon. However, so as not to encounter controversy, it is proper to act in accordance with the later opinion (16.1 degrees below the horizon). Only when the sky in the east is slightly illuminated does the time of amud hashachar<\/i> arrive, and from then one may recite Keriat Shema<\/i> and pray the Amidah<\/i> in a case of extenuating circumstances.[1]<\/a><\/sup><\/p>\n