To calculate the number of hours in a century, you need to consider leap years. Here’s how you can do it:

First, determine the number of days in a century. A century consists of 100 years. Since every fourth year is a leap year, we need to calculate how many leap years there are in a century.

The formula to calculate leap years is:

Number of leap years =⌊End year/4⌋ −⌊Start year/4⌋

�⌊x⌋ denotes the greatest integer less than or equal to 

Once you have the number of leap years, you can calculate the total number of days in a century:

Number of days = 100×365+Number of leap years

Finally, multiply the total number of days by 24 (the number of hours in a day) to get the total number of hours in a century.

Let’s do the calculation:

• Number of leap years in a century:

Number of leap years =⌊2000/4⌋ −⌊1900/4⌋ = 25 −23 = 2

• Total number of days in a century:

Number of days=100×365+2=36500+2=36502 days

• Total number of hours in a century:

Number of hours=36502×24=876,048 hours

So, there are 876,048 hours in a century.

Key Points : 

• A century consists of 100 years.
• A leap year occurs every four years, adding an extra day to February (29 days instead of 28).
• Leap years adjust our calendar to keep it synchronized with the Earth’s revolutions around the Sun.
• The concept of leap years was introduced by the Roman general Julius Caesar and further refined by Pope Gregory XIII in 1582 with the Gregorian calendar.