Salat al Eid also known as Salat al Eidain is the special prayer offered to commemorate two Islamic festivals. Both the Eids are collectively known as Eidain (عيدين) in Arabic language. The two Islamic festivals are:

• Eid Al Fitr, is celebrated on the 1st day of Shawwal
  Shawwal
  Shawwāl is the tenth month of the lunar Islamic calendar. Shawwāl means to ‘lift or carry’; so named because she-camels normally would be carrying a fetus at this time of year.-Fasting during Shawwāl:...
  
  , the 10th month of Islamic calendar.
• Eid Al Adha, is celebrated on the 10th day of Dhu al-Hijjah
  Dhu al-Hijjah
  Dhu al-Ḥijjah is the twelfth and final month in the Islamic calendar.This is a very sacred month in the Islamic calendar, marking the end of the year. It is in this month in which the Hajj takes place....
  
  , the 12th month of Islamic calendar.

On both the occasions this special prayer is usually offered in Eidgah

Eidgah

Eidgah or Idgah is an open-air mosque usually outside the city to perform Eid ul-Fitr and Eid al-Adha salah.It was a practice of Prophet Muhammad to perform Eid Salaah in Eidgah at the outskirts of the city...

, a place in the outskirts of the city dedicated for Salat al Eid.

Importance

Different scholars interpret the importance of this Salah (prayer) differently. Salat al Eid is Wajib according to Hanafi scholars, Sunnah al Mu'kkadah according to Maliki and Shaf'i jurisprudence, and Fard

Fard

also is an Islamic term which denotes a religious duty. The word is also used in Persian, Turkish, and Urdu in the same meaning....

 according to Hanbali scholars. Some scholars say it is fard al-ayn and some said its fard al-kifaya.

Participation of women and children

During the time of prophet Muhammad

Muhammad

Muhammad |ligature]] at U+FDF4 ;Arabic pronunciation varies regionally; the first vowel ranges from ~~; the second and the last vowel: ~~~. There are dialects which have no stress. In Egypt, it is pronounced not in religious contexts...

(S.A.W), women and children participated in Salat al Eid.

Timing

The time of Salat al Eid begins when sun reaches approximately two meters above the horizon until it reaches its meridian before Dhuhr

Dhuhr

The dhuhr prayer is the prayer after midday Performed daily by practicing Muslims, it is the second of the five daily prayers...

. Adhering to the Sunnah

Sunnah

The word literally means a clear, well trodden, busy and plain surfaced road. In the discussion of the sources of religion, Sunnah denotes the practice of Prophet Muhammad that he taught and practically instituted as a teacher of the sharī‘ah and the best exemplar...

, the time for Eid al Fitr prayer is delayed and Eid al Adha prayer is hastened, so as to facilitate distribution of Fitrah before the Eid al Fitr prayer and offer sacrifice after the Eid al Adha prayer. This has been a proved Sunnah and has been well recorded in Hadith

Hadith

The term Hadīth is used to denote a saying or an act or tacit approval or criticism ascribed either validly or invalidly to the Islamic prophet Muhammad....

books.