Times for praying Tahajjud, Chast and Ishraq Namaz?

Question:

What are the starting and end times for praying Tahajjud, Chast and Ishraq Namaz?

Answer:

Tahajjud prayer is performed after Isha and before Fajr. However, a person must sleep first and then perform Tahajjud. If he performed Isha, stayed awake and then hours later read Tahajjud, then this will not count as Tahajjud. The amount of prayers can be between two and twelve Rakats.
Salah al-Ishraq is performed when a person has read Fajr with congregation and then stays at his place of prayer engaged in Zikr until the sun appears fully, about twenty minutes after sunrise. He then reads two Rakats nafl prayer of Ishraq.
Chast Salah is performed in the morning (after sunrise and before Zawal) though it is better to perform it after a quarter of the day has passed. Between two and twelve Rakats are read.