Easter in Ukraine is celebrated on two different days, depending on which liturgical calendar you follow.
According to the Association of Religion Data Archives, 69.27% of Ukrainians are Orthodox, 11.32% are Catholic and 3.68% are Protestant.
This splits the celebration of Easter to two different days.
According to the norms established by the Council of Nicaea (325) and later adopted for Western Christianity at the Synod of Whitby, Easter Sunday falls each year on the first Sunday following the first full moon after the vernal equinox. In 2022, this results in Easter being celebrated for Catholics and Protestants on April17.
As explained by Fr. Jon Magoulias at the Greek Reporter, the primary reason why the Orthodox calculation of Easter differs from the rest of Christianity is because the “Orthodox Church continues to follow the Julian calendar when calculating the date of Pascha (Easter). The rest of Christianity uses the Gregorian calendar. There is a thirteen-day differencebetween the two calendars, the Julian calendar being thirteen (13) days behind the Gregorian.”
In 2022, Orthodox Easter falls on April 24.
As a result, most Christians in Ukraine will celebrate Easter on April 24, while a minority of Christians in Ukraine will celebrate it on April 17.