How Many Hours Are in a Month?

There are different ways to calculate how many hours are in a month depending on context.

For total hours in calendar months:

• A 30-day month has 720 hours (30 days × 24 hours)
• A 31-day month has 744 hours (31 days × 24 hours)
• February in a common year has 672 hours (28 days × 24 hours)
• On average, a month has about 730 to 732 hours depending on leap years.

For work hours (typically full-time 40 hours/week):

• A simple estimate is 160 hours per month (40 hours × 4 weeks)
• A more accurate average based on the full year is 173.33 hours per month (2080 hours/year ÷ 12 months)

The difference exists because some months are longer than others, and the yearly average accounts for that by dividing total yearly hours by 12. So, hours in a month vary from about 672 to 744 hours total, while standard work hours average around 160 to 173 hours monthly depending on calculation methods.