Tbilisi doesn't observe daylight saving time but Ottawa does. DST in Ottawa started on 10 March 2019 and will end on 03 November 2019. Once DST ends in Ottawa the time difference between Tbilisi and Ottawa will be -9:0 hours.
Time zone: GET - Georgia Standard Time (UTC/GMT +4)Time zone difference / Flight distance
Time zone: EDT - Eastern Daylight Time (UTC/GMT -4)DST started on 10 March 2019DST will end on 03 November 2019Time zone difference / Flight distance