It starts from 9. 20 pm till 2. 30 am .. It depends how an individual 's family ask to follow.. Check with ur mom or mom in law...

scientific reason behind grahan is that during this phase the inner rays which is called infrared waves approaches earth on maximum amt which cause harm to skin as it can penetrate skin and also cause harm to fetus. so it is advisable to not face sunlight directly during this time. nd other things are only myth.

Grehen ka precaution i think har ghar mein alag hota hain. Kuch kehtein hain ki ghar se na nikalein.