In Eastern Orthodox tradition, Holy Week starts on Lazarus Saturday, the day before Palm Sunday. (Easter Sunday, for context, is the first day of the new season of the Great Fifty Days, or Eastertide, there being fifty days from Easter Sunday through Pentecost Sunday.) It is followed by Easter Week. (With material from: Wikipedia)
Where is Holy Week?
When is Holy Week?
Sunday, the 29th of March 2015 to Saturday, the 4th of April 2015