Calculate the number of days in one year.
There are 365 days in a year, except for leap years which have an additional day, making a total of 366 days.
Complete the following task based on the instruction and optional input provided.### Instruction:
Calculate the number of days in one year.

### Output:
There are 365 days in a year, except for leap years which have an additional day, making a total of 366 days.