Here we need to convert year into seconds.
so lets do it step by step
first lets convert year to hours
1 year has 365 days - 365 days per year
and a day has 24 hours - 24 hours per day
therefore 1 year will have -1 year x 365 days per year x 24 hours per day
= 8760 hours
next convert hours to seconds
1 hour has 60 minutes - 60 minutes per hour
and 1 minute has 60 seconds - 60 seconds per minute
since 1 year has 8760 hours
8760 hours will have - 8760 hours x 60 minutes per hour x 60 seconds per minute
= 31 536 000 seconds = 3.15 x 10⁷ s
answer is 3.15 x 10⁷ s in one year