Time difference between Ottawa Canada and Buenos Aires Argentina is 2:0 hours
Buenos Aires doesn't observe daylight saving time but Ottawa does. DST in Ottawa started on 10 March 2019 and ended on 03 November 2019. When DST is observed in Ottawa the time difference between Ottawa and Buenos Aires is 1:0 hour.
See distance from Ottawa to Buenos Aires
Ottawa, Ontario, Canada is 2 hours behind Buenos Aires, Argentina
11:30 am Saturday, in Ottawa, Ontario, Canada is 1:30 pm Saturday, in Buenos Aires, Argentina