Template:User time zone/documentation

The first parameter is for your time zone, in the format: UTC either by itself or plus or minus a number, according to the time zone you wish to display. For example, in Seattle, Washington, USA, you would use minus eight, plus a form of the second (DST) parameter:

The second parameter, specifying your location's observance of Daylight Saving Time (DST), is optional. Note that different locations have different starting and ending dates for DST. Available options are:
 * 0 if you do not observe DST.
 * 1 if you do observe DST (very ambiguous as to when).
 * 1N or 1S for DST in the Northern/Southern Hemisphere (slightly ambiguous as to when).
 * from April to September to specify the date range of DST.

it:template:Fuso orario utente