Hour

An hour is 60 minutes.

There are 3600 seconds in an hour.

There are 3,600,000 milliseconds in an hour.

There are approximately 24 hours in a day.

There are approximately 168 hours in a week.

There are approximately 720 hours in a month.

There are approximately 8766 hours in a year.

There are approximately 87660 hours in a decade.

There are approximately 876,600 hours in a century.

There are approximately 8,766,000 hours in a millennium.