Isha time end when it is midnight. This is calculated by dividing the time between Maghrib and the break of dawn and then adding the result to Maghreb time.

My question is about Isha, untill what time can you pray the Isha?

Prayer | March 25, 2014 7:29 pm
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We have a local masjid which the qibla is 15 degrees out of its actual direction. Can we still pray at this masjid?
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While I was praying sunnah prayer of Dhuhr prayer the Iqama for the fard salah started. At that moment I was in the sujood of first rakah. After completing the sujood I left the salah without taslim for joining fard salah. My question : have I done the right thing? Was I supposed to repeat that sunnah salah later?