At risk of being a pedant, Pascha would not be the exception to Holy Week but rather after the conclusion of Holy Week. The end of week is sundown on Saturday.
After Holy Week has ended on Saturday, The Resurrection (i.e. Pascha), occurs on the first day of the week - Sunday. :)
After Holy Week has ended on Saturday, The Resurrection (i.e. Pascha), occurs on the first day of the week - Sunday. :)