#civil_time__civiltime__standard_time__local_time__localtime  the official time in a local region (adjusted for location around the Earth); established by law or custom
  supertype:  time  the continuum of experience in which events pass from the future through the present to the past
  subtype:  Atlantic_Time__Atlantic_Standard_Time  standard time in the 4th time zone west of Greenwich, reckoned at the 60th meridian; used in Puerto Rico and the Virgin Islands and Bermuda and the Canadian Maritime Provinces
  subtype:  Eastern_Time__Eastern_Standard_Time__EST  standard time in the 5th time zone west of Greenwich, reckoned at the 75th meridian; used in the eastern United States
  subtype:  Central_Time__Central_Standard_Time__CST  standard time in the 6th time zone west of Greenwich, reckoned at the 90th meridian; used in the central United States
  subtype:  Mountain_Time__Mountain_Standard_Time__MST  standard time in the 7th time zone west of Greenwich, reckoned at the 105th meridian west; used in the mountain states of the United States
  subtype:  Pacific_Time__Pacific_Standard_Time__PST  standard time in the 8th time zone west of Greenwich, reckoned at the 120th meridian west; used in far western states of the United States
  subtype:  Alaska_Standard_Time__Yukon_Time  standard time in the 9th time zone west of Greenwich, reckoned at the 135th meridian west; used in Hawaii and most of Alaska
  subtype:  Hawaii_Time__Hawaii_Standard_Time  standard time in the 10th time zone west of Greenwich, reckoned at the 150th meridian west; used in Hawaii and the western Aleutian Islands
  subtype:  Bering_Time__Bering_Standard_Time  standard time in the 11th time zone west of Greenwich, reckoned at the 165th meridian west; used in the Midway Islands

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