Christmas Day Mass @ St. John’s, Mount Vernon, IA admin July 28, 2017 Calendar When: December 25, 2016 @ 9:00 am – 10:00 am America/Chicago Timezone 2016-12-25T09:00:00-06:00 2016-12-25T10:00:00-06:00 Where: St. John the Baptist Church Mount Vernon IA