MTBF Value conversion from years to hours

Hello, I am working on reliability document for project that uses module EM9191. In “Product Technical Specification” the MTBF value provided in form of years, may I ask how to correctly convert it to form of hours?

does this help?

Thank you very much, but I hoped that I will get something like equation 1 year = 365 days, (1 day = 24 hour) thus 1 year = 8760 hours.

MTBF=87.01 years= (8760 *87.01)hours =762207.6hours