Patna doesn't observe daylight saving time but St. Johns does. DST in St. Johns started on 10 March 2019 and will end on 03 November 2019. Once DST ends in St. Johns the time difference between Patna and St. Johns will be -9:0 hours.
Time zone: IST - India Standard Time (UTC/GMT +5:30)Time zone difference / Flight distance
Time zone: NDT - Newfoundland Daylight Time (UTC/GMT -2:30)DST started on 10 March 2019DST will end on 03 November 2019Time zone difference / Flight distance