Father’s Day [Not a public holiday] Calendar When: June 17, 2018 all-day 2018-06-17T00:00:00-05:00 2018-06-18T00:00:00-05:00 Where: USA Holiday 3rd Sunday in June. Not a public holiday. Not a public holiday, Father’s Day is a celebration that honours the role of fathers Information provided by www.officeholidays.com