AsSalaamalaykum Warahmatullah Wabarakatuh Dear brothers and sisters in Islaam,
This is to remind us of the Ayamu beed fasting . The Three days fasting in every hijri month.
there are many rewards in fasting this days as related In many Authentic Ahadeeth of the Prophet.(sallallaahu alayhi wasallam), as far as Nigeria is concerned, these are the Dates in Obedience to the words of Allaah.; O you who have believed, obey Allah and obey the Messenger and those in authority among you. And if you disagree over anything, refer it to Allah and the Messenger, if you should believe in Allah and the Last Day. That is the best [way] and best in result._(Q4 vs 59)
Sahih international...
According to the announcement made by Sultaan, 10th May, 2017 is actually 13th Sha'baan. Follow the below link for confirmation.
JazaakumuLlaahu khayraan

http://www.nscia.com.ng/index.php/news-room/132-sha-aban-press-release