Every day babies skin needs to breath vitamin D. Every day is good practice.

my question is,how many days..till one Month old or more

I preferred afternoon 3pm sunlight for about 10mins. If your baby is awake n morning then around 8oclock sunlight is good.

Rakhna in the sense? Dhoop see Vitamin D milta hai directly bacchon ko is liye... Thodi deer dhoop mein leke jaane se accha hoga.