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25-Nov-2019 23:07

In the Julian calendar, the average (mean) length of a year is 365.25 days.

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Financial and scientific calculations often use a 365-day calendar to simplify daily rates.

In temperate and subpolar regions around the globe, four seasons are generally recognized: spring, summer, autumn and winter.

In tropical and subtropical regions several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked.

The Persian calendar, in use in Afghanistan and Iran, has its year begin at the midnight closest to the instant of the northward equinox as determined by astronomical computation (for the time zone of Tehran), as opposed to using an algorithmic system of leap years.

A fiscal year or financial year is a 12-month period used for calculating annual financial statements in businesses and other organizations.

Financial and scientific calculations often use a 365-day calendar to simplify daily rates.

In temperate and subpolar regions around the globe, four seasons are generally recognized: spring, summer, autumn and winter.

In tropical and subtropical regions several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked.

The Persian calendar, in use in Afghanistan and Iran, has its year begin at the midnight closest to the instant of the northward equinox as determined by astronomical computation (for the time zone of Tehran), as opposed to using an algorithmic system of leap years.

A fiscal year or financial year is a 12-month period used for calculating annual financial statements in businesses and other organizations.

For the Gregorian calendar the average length of the calendar year (the mean year) across the complete leap cycle of 400 years is 365.2425 days.