Santo Domingo doesn't observe daylight saving time but Chicago does. DST in Chicago started on 10 March 2019 and will end on 03 November 2019. Once DST ends in Chicago the time difference between Chicago and Santo Domingo will be 2:0 hours.
Time zone: CDT - Central Daylight Time (UTC/GMT -5)DST started on 10 March 2019DST will end on 03 November 2019Time zone difference / Flight distance
Time zone: AST - Atlantic Standard Time (UTC/GMT -4)Time zone difference / Flight distance