Thanks Imran, I believed the same you are saying here.
Take my advice, do not mess around with the timings shots are given to new borns.
Let everyone know in the delivery room in advance, that you will need two shots ready for the newborn within 4 hours, at different sites on the body.
1. HBIG shot
2. HBV Vaccine
After the delivery, I believe the schedule is 1 month, 3 months, 6 months, and maybe 9 months.
If you dont follow the right protocol or wait longer yes, there is a very high risk to the newborn.