Answer:
You must have the second one in 1 month and the third in 6 months.
Explanation:
Hepatitis vaccination is scheduled to be given in three doses, given atleast a month apart. According to the WHO (and CDC)'s schedule, the first two doses should be given atleast a month apart while the third dose should be given 1-12 months after the second dose.
So in summary:
First dose: any time
Second dose: One month after
Third dose: 1-12 months after