When was First Day of Fall in 2011? - When-Is.com
When Is - Dates of Religious and Civil Holidays Around the World

When was First Day of Fall in 2011?

First Day of Fall in 2011 was on Friday, the 23rd of September (23/9/2011).

How are First Day of Fall dates determined?

On the equinoxes the Sun shines directly on the equator and the length of day and night is nearly equal - but not quite. The Autumnal or September Equinox is when the Sun crosses the celestial equator, moving from north to south. This date is considered to be the first day of Fall for countries in the Northern Hemisphere.

Dates of First Day of Fall by year

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Other World Holidays in 2011:

Monthly World Holiday Calendars