1 prahar (3 hours)
At the end of the night and at the end of the day. (Morning sandhiprakash raags are from 4 am - 7 am)
Re and Dha, Dha can be shuddha as an exception (Re MUST be komal)
Ga
Morning: Shuddha Ma
Evening: Teevra Ma
Re
Bhairav, Kalingadaa (From Bhairav Thaat)
Poorvi, Maarva, etc.