In order to find out how many seconds are there in one year, there is a break down structure which need to be maintained strictly. The entire length of one year need to be reduced into smaller units until the result is related with the proper conversion. This conversion is very helpful and it is used in various fields such as physics and astronomy. It is required in such fields as this fields requires the exact measurement of time. The conversion is an important aspects as it helps in breaking down of large units into smaller units. The conversion of year into seconds depends upon the days in a year. It is important to identify whether the year is a leap year or an astronomical year.

One astronomical year consists of 365.25 days.

Step 1:

1 year = 365.25 days

Step 2:

1day = 24 hours

Step 3:

1 hour = 60 min

Step 4:

1 min = 60 sec

This will generate a series of conversion factors

1 year = (365.25 days / 1 year)* (24 hours/ 1 day)* (60 min/1 hour)*(60 sec/1min)

All the terms cancels out except the seconds’ terms which is present in the numerator. Therefore,

1 year = 365*24*60*60 = 31,557,600 seconds.

From the above calculation the result is that there are 31,557,600 seconds in a year.

However, in case of leap year which occurs every 4 years

 Step 1:

1 leap year = 366 days

Therefore,

1leap year = 366*24*60*60 = 31,622,400 seconds.

From the above calculation the result is that there are 31,622,400 seconds in a leap year.