Yeah, God sends the Orthodox a miracle EVERY year telling them to celebrate Easter on the Roman Catholics’ calendar.
The miracle of the Holy Fire occurs only on the Easter Vigil of the Catholic Church, NOT on the easter vigil of the Orthodox,

much to the dismay of the Byzantines!
They retreive the fire and distribute it, but *the fire miraculously appears *in the tomb of Jesus
on the Easter vigil of the Roman Church.
2008• March 23 - Easter Sunday (Western)
• April 27 - Easter Sunday (Orthodox)
2009 Easter Sunday April 12 (same)
2010 Easter Sunday April 4 (same)
2011 - Easter Sunday - April 24th (same)
2012 - Easter Sunday - April 15th
2013 - Easter Sunday - May 5th
2014 - Easter Sunday - April 20th (same)
2015 - Easter Sunday - April 12th
2016 - Easter Sunday - May 1st
2017 - Easter Sunday - April 16th (same)