Takes place 4 times annually, on the 6th of the month of March, on the 6th of the month of June, on the 6th of the month of September and on the 6th of the month of December.

Inception Year:
2015
Hashtags:
References:
theblackout.org
facebook.com/HashtagBlackOutDay
en.wikipedia.org/wiki/Blackout_Day