Tangshan doesn't observe daylight saving time but Concord does. DST in Concord started on 10 March 2019 and will end on 03 November 2019. Once DST ends in Concord the time difference between Tangshan and Concord will be -13:0 hours.
Time zone: CST - China Standard Time (UTC/GMT +8)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