Saint-Denis doesn't observe daylight saving time but Paris does. DST in Paris started on 31 March 2019 and will end on 27 October 2019. Once DST ends in Paris the time difference between Saint-Denis and Paris will be -3:0 hours.
Time zone: RET - Reunion Time (UTC/GMT +4)Time zone difference / Flight distance
Time zone: CEST - Central European Summer Time (UTC/GMT +2)DST started on 31 March 2019DST will end on 27 October 2019Time zone difference / Flight distance