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NATIONAL DAYLIGHT APPRECIATION DAY – June 21

National Daylight Appreciation Day - June 21

NATIONAL DAYLIGHT APPRECIATION DAY

National Daylight Appreciation Day is observed each year on June 21.   This day recognizes summer solstice (the longest day of daylight in the northern hemisphere) and encourages people to celebrate the many benefits of the sun.

National Daylight Appreciation Day is also a day to learn more about the importance of daylighting.   Daylighting is defined as lighting an indoor space with openings, such as windows and skylights, that will allow daylight into the home or building.  Daylighting is chosen to save energy, to avoid hypothesized adverse health effects of over-illumination by artificial light and for aesthetics.  Daylight factor is the ratio between the measured internal and external light levels of the amount of daylight that is received into an indoor space or room.

Installing fewer electric lights because daylight is present or dimming/switching electric lights automatically in response to the presence of daylight can reduce artificial lighting energy.  This process is known as daylight harvesting.

Daylight has positive psychological effects; it can boost your mental health and help to lower depression as well as help with increased energy levels.  The Vitamin D, that we naturally get from the sun, has many health benefits for us.

Enjoy the summer solstice, enjoy the sunshine and let the sun, shine into your home!

NATIONAL DAYLIGHT APPRECIATION DAY HISTORY

National Daylight Appreciation Day, an “unofficial” National holiday is sponsored by Solatube International, Inc., a manufacturer of Tubular Daylighting Devices.

 

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One Response to “NATIONAL DAYLIGHT APPRECIATION DAY – June 21”

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  1. June 20th – National Vanilla Milkshake Day | One Day At A Time - June 20, 2015

    […] National Daylight Appreciation Day […]

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