BUILT-IN WOLFRAM LANGUAGE SYMBOL

$TimeZone

$TimeZone
gives the current time zone to assume for dates and times.

Details Details

The time zone gives the number of hours which must be added to Greenwich Mean Time (GMT) to obtain local time.
U.S. Eastern Standard Time (EST) corresponds to time zone .
Daylight Saving Time corrections must be included in the time zone, so U.S. Eastern Daylight Time (EDT) corresponds to time zone .
$TimeZone is set at the beginning of your Wolfram System session to the time zone specified by your computer operating system.
$TimeZone=z resets the current time zone for purposes of functions like DateString, DateList and AbsoluteTime.
Settings for $TimeZone need not be integers.
The Wolfram System assumes that the time returned by the system clock on your computer system is for the time zone corresponding to $TimeZone.