Rarotonga doesn't observe daylight saving time but Halifax does. DST in Halifax started on 10 March 2019 and will end on 03 November 2019. Once DST ends in Halifax the time difference between Rarotonga and Halifax will be 6:0 hours.
Time zone: CKT - Cook Island Time (UTC/GMT -10)Time zone difference / Flight distance
Time zone: ADT - Atlantic Daylight Time (UTC/GMT -3)DST started on 10 March 2019DST will end on 03 November 2019Time zone difference / Flight distance