This map shows the difference between legal time and local mean time in Japan and its neighborhood. Eastern part of Hokkaido is over 30 minutes behind and western part of Ryukyu islands is over 30 minutes ahead of local solar time as a single standard time offset of UTC+09:00 is observed in whole country of Japan, even in its easternmost territory,Minamitorishima (153°59′E) and its westernmost territory,Yonaguni (122°56′E).
Areas in UTC+09:00 longitudes using other time zones
^Goerling, Samantha; Collins, Andrew (30 March 2024)."Central Western Time, affectionately known as 'Eucla time', is WA's lesser-known second time zone".ABC Great Southern.To simplify the matter, Arubbidy Station — located between Balladonia and Eucla — operates off its own time, distinct to Eucla time, according to owner Matthew Lewis. "If you go through Caiguna, [the sign] says move your clocks back 45 minutes. We say we're not that smart really so we just go with one hour, so we're one hour on from WA," he said.
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