According to the master list of transfer windows the Canadian window just opened on Tuesday. #CanPL teams can buy players from Feb 13 to May 7.
— Duane Rollins (@24thminute) February 15, 2019
The second window is listed as July 9 to Aug 7.
Canadian MLS teams are governed by US window (March 1 to May 23//June 25 to July 24)