Earth Hour is a worldwide movement for the planet organized by the World Wide Fund for Nature (WWF). The event is held worldwide annually encouraging individuals, communities, households and businesses to turn off their non-essential lights for one hour, from 8:30 to 9:30 p.m. towards the end of March, as a symbol for their commitment to the planet.

The earth's axis is perpendicular to its orbit with the North pole tipping away form the sun. In other words, the season is changing to Fall.

Annular Eclipse in parts of Africa and South America. See: http://eclipse.gsfc.nasa.gov/SEgoogle/SEgoogle2001/SE2017Feb26Agoogle.h…

Longest night, shortest day

Day and night are equally long

Total solar eclipse

Longest day, shortest night.

Meteor Shower

Meteor Shower

Penumbral lunar eclipse