Yokohama doesn't observe daylight saving time but Dublin does. DST in Dublin started on 31 March 2019 and will end on 27 October 2019. Once DST ends in Dublin the time difference between Yokohama and Dublin will be -9:0 hours.
Time zone: JST - Japan Standard Time (UTC/GMT +9)Time zone difference / Flight distance
Time zone: IST - Irish Summer Time (UTC/GMT +1)DST started on 31 March 2019DST will end on 27 October 2019Time zone difference / Flight distance