Father's Day
Father's Day, is observed on the feast day of Fathers. It is celebrated as a public international day, like in many other countries including the U.S., on the third Sunday of June.
In Greece, like in other European countries, this day is named (Fête des Peres/Feast of Fathers)
Parents' Day
Parents' Day is observed in South Korea (May 8) and in the United States (fourth Sunday of July). The South Korean designation was established in 1973, replacing the Mother's Day previously marked on May 8, and includes public and private celebrations. The United States day was created in 1994 under President Bill Clinton. June 1 has also been proclaimed as "Global Day of Parents" by the United Nations as a mark of appreciation for the commitment of parents towards their children. In the Philippines, while it is not strictly observed or celebrated, the first Monday of December each year is proclaimed as Parents' Day.