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Weather: Today is the Equilux, but what does that mean?

Sunrise Photo: Ray Hutcheon

Today is the equilux.

This is the point when day and night are exactly equal. From today our days will be longer than the nights - a welcome relief after the winter.

It happens a few days before the spring equinox, and a few days after the autumn equinox.

It is all down to how the Sun's light reaches us - refracted from the Earth's atmosphere adding a few minutes of extra daylight.

Credit: Met Office

Monday marks the spring equinox- the point the sun ends up exactly above the equator between the Northern and Southern Hemisphere.

The spring equinox marks the beginning of the astronomical spring.