TIMESTAMP WITH TIME ZONE
TIMESTAMP WITH TIME ZONE is a variant of TIMESTAMP that includes a time zone offset in its value. The time zone offset is the difference (in hours and minutes) between local time and UTC (Coordinated Universal Time—formerly Greenwich Mean Time). This datatype is useful for collecting and evaluating date information across geographic regions.
Specify the TIMESTAMP WITH TIME ZONE datatype as follows:
TIMESTAMP [(fractional_seconds_precision)] WITH TIME ZONE
where fractional_seconds_precision optionally specifies the number of digits Oracle stores in the fractional part of the SECOND datetime field. When you create a column of this datatype, the value can be a number in the range 0 to 9. The default is 6.
Oracle time zone data is derived from the public domain information available at ftp://elsie.nci.nih.gov/pub/. Oracle time zone data may not reflect the most recent data available at this site.
Also see[edit]
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