The Qunoot (supplication) is to be performed in every two Rak'ahs, specifically in the second Rak'ah, before bowing (Ruku') and after the recitation, and it should be done aloud. The Qunoot is also performed in the Witr prayer before bowing. If you stand for prayer but do not have enough time to perform the entire night prayer as intended, then perform it in a summarized form, meaning recite only Surah Al-Fatiha in each Rak'ah. If you fear the approach of Fajr, perform two Rak'ahs and complete the Witr with a third. If Fajr has begun, perform the two Rak'ahs of Fajr prayer as soon as time permits. If you have managed to pray four Rak'ahs of the night prayer before Fajr, continue and complete the remaining prayers, whether Fajr has begun or not. There is a concession for offering the night prayer after Fajr has begun on occasion, but it should not become habitual. If you have missed the night prayer and have enough time upon waking to perform both the missed and current night's prayer, begin with the missed prayer and then perform the current one. If there is only enough time for one, perform the current night prayer so that neither becomes overdue, and then make up the missed prayer later, either on the next day or thereafter.