There are 8,760 hours in a common (non-leap) year.

Calculation:

• 1 day = 24 hours
• 1 year = 365 days
• Total hours = 365 days × 24 hours/day = 8,760 hours

For a leap year (which has 366 days), the total hours would be:
366 days × 24 hours/day = 8,784 hours Let me know if you'd like the calculation for a specific year!