Eid-ul-Adha 2016 / 1437 AH
Astronomical data and moon sighting probability information is available. It is important that Muslims understand the facts and educate themselves on this subject.
Start of Zul-Hajj
New moon will be born at 9:03 (UT) on Thursday 1st September 2016.
The pre-calculated Umm al-Qura calendar system of Saudi Arabia will accept moon sighting up to 112.95 degrees latitude.
Learn more about the Umm al-Qura calendar system of Saudi Arabia
Global scan for Thursday (1st) evening (Click to view in detail):
RED LINE : Limiting Horizon of 112.95 Degrees
RED Area: Impossible No Colour: Not Possible Blue: Need Optical Aid Magenta: Could be Seen by Naked Eye Green: Easily Visible by Naked Eye Cyan: Unknown
Muslims and Astronomers from across the world search for the new moon at the start of each Islamic month. Their findings are posted on the Internet on sites such as www.moonsighting.com.
The information gathered for Zul-Hajj can be seen by clicking here.
The rules of the Umm al-Qura calendar system of Saudi Arabia allow for the start of the new Islamic month on the (their) 29th night if:
1. The geocentric conjunction occurs before sunset over Mecca.
2. The moon sets after the sun over Mecca
Both of these conditions will be met and so it is expected that Saudi will announce the start of Zul Hajj as Friday 2nd September 2016, despite the moon being too young (6 Hours 34 Minutes) to be seen, very low on the horizon and the moon setting just 6 minutes after sunset.
The moon is not expected to be seen anywhere in the world on Thursday 1st September 2016.
If the moon is seen on 2nd September 2016 then Eid-ul-Adha will be on Monday 12th September 2016.
The Umm al-Qura calendar of Saudi Arabia is expected to establish Eid-ul-Adha as Sunday 11th September 2016 for the followers of this pre-calculated system. On previous occasions when the moon was low on the horizon (1 degree), Saudi Arabia broke from the Umm al-Qura pre-fixed calendar and so may celebrate Eid-ul-Adha with the rest of the world on Monday 12th September 2016.
Post start of Zul-Hajj Update:
With the moon at only 1 degree altitude at sunset and an age of only 6 hours 34 minutes, Saudi Arabia did not adopt the pre-calculated Umm a-Qura calendar date and began Zull Hijjah on Saturday 3rd September (making Eid-ul-adha Monday 12th September 2016).
Moon was widely seen across the world on 2nd September 2016 and after receiving confirmation, 1st Zul Hijjah was set for 3rd September (making Eid-ul-adha Monday 12th September 2016).