Buhari declares december 24 25 28 public holidays
I think there may be some misinformation here.
As of my knowledge cutoff, there is no official announcement from the Nigerian government or President Muhammadu Buhari declaring December 24, 25, and 28 as public holidays.
In Nigeria, public holidays are typically declared by the Federal Government, usually in advance, to mark significant events and celebrations. The country has a number of public holidays throughout the year, including Christmas Day (December 25) and New Year's Day (January 1).
It's possible that you may have come across a misleading or outdated report. If you have any further information or a credible source for this announcement, I'd be happy to help verify it.