zic(1M) 																   zic(1M)

NAME

       zic - time zone compiler

SYNOPSIS

       zic [-s] [-v] [-l localtime] [-p posixrules] [-d directory] [-y yearistype] [filename...]

       zic  reads  text from the file(s) named on the command line and creates the time conversion information files specified in this input. If a
       filename is '-', the standard input is read.

       Input lines are made up of fields. Fields are separated by any number of white space characters. Leading and trailing white space on  input
       lines  is  ignored. A pound sign (#) indicates a comment that extends to the end of the line. White space characters and pound signs can be
       enclosed within double quotes (" ") if they are to be used as part of a field. Any line that is blank (after comment stripping) is ignored.
       Non-blank lines are expected to be of one of three types: rule lines, zone lines, or link lines.

   Rule
       A rule line has the form:

       For example:

       Rule   NAME  FROM  TO  TYPE  IN	 ON	AT   SAVE  LETTER/S

       The fields that make up a rule line are:

       Rule   USA   1969  1973	 -  Apr lastSun 2:00  1:00   D

       NAME	       Gives the (arbitrary) name of the set of rules this rule is part of.

       FROM	       Gives  the first year in which the rule applies. The word minimum (or an abbreviation) means the minimum year with a repre-
		       sentable time value. The word maximum (or an abbreviation) means the maximum year with a representable time value.

       TO	       Gives the final year in which the rule applies. In addition to minimum and maximum (as above), the word only (or an  abbre-
		       viation) can be used to repeat the value of the FROM field.

       TYPE	       Gives the type of year in which the rule applies. If TYPE is:

		       '-'	       The rule applies in all years between FROM and TO, inclusive.

		       uspres	       The rule applies in U.S. Presidential election years.

		       nonpres	       The rule applies in years other than U.S. Presidential election years.

		       even	       The rule applies to even-numbered years.

		       odd	       The rule applies to odd-numbered years.

		       If TYPE is something else, then zic will attempt to execute the command

		       yearistype year type

		       to  check  the type of a year: an exit status of 0 means that the year is of the given type; an exit status of 1 means that
		       the year is not of the given type. The yearistype command is not currently provided in the Solaris environment.

       IN	       Names the month in which the rule takes effect. Month names can be abbreviated.

       ON	       Gives the day on which the rule takes effect. Recognized forms include:

		       5	       the fifth day of the month

		       lastSun	       The last Sunday in the month

		       lastMon	       The last Monday in the month

		       Sun>=8	       First Sunday on or after the eighth

		       Sun<=25	       Last Sunday on or before the 25th

		       Names of days of the week can be abbreviated or spelled out in full. Note: There cannot be spaces within the ON field.

       AT	       Gives the time of day at which the rule takes effect. Recognized forms include:

		       2	       Time in hours

		       2:00	       Time in hours and minutes

		       15:00	       24-hour format time (for times after noon)

		       1:28:14	       Time in hours, minutes, and seconds, where hour 0 is midnight at the start of the day and hour 24  is  mid-
				       night at the end of the day.

		       Any  of	these  forms  can be followed by the letter w if the given time is local "wall clock" time; s if the given time is
		       local "standard" time; or u (or g or z) if the given time is universal time. In the absence of  an  indicator,  wall  clock
		       time is assumed.

       SAVE	       Gives  the  amount of time to be added to local standard time when the rule is in effect. This field has the same format as
		       the AT field (without the w and s suffixes).

       LETTER/S        Gives the "variable part" (for example, the "S" or "D" in "EST" or "EDT" of time zone abbreviations to be  used	when  this
		       rule is in effect. If this field is '-', the variable part is null.

   Zone
       A zone line has the form:

       Zone  NAME		  GMTOFF  RULES/SAVE   FORMAT  [UNTIL]

       For example:

       Zone Australia/SouthWest   9:30	      - 	CST    1992 Mar 15 12:00
				  8:30	    Aus 	CST

       The fields that make up a zone line are:

       NAME	       The name of the time zone. This is the name used in creating the time conversion information file for the zone.

       GMTOFF	       The  amount  of	time  to  add  to UTC to get standard time in this zone. This field has the same format as the AT and SAVE
		       fields of rule lines; begin the field with a minus sign to subtract time from UTC.

       RULES/SAVE      The name of the rule(s) that apply in the time zone or, alternately, an amount of time to add to local  standard  time.	If
		       this field is `-', then standard time always applies in the time zone.

       FORMAT	       The  format  for  time  zone abbreviations in this time zone. The pair of characters %s is used to show where the "variable
		       part" of the time zone abbreviation goes. Alternately, a slash (/) separates standard and daylight abbreviations.

       UNTIL	       The time at which the UTC offset or the rule(s) change for a location. It is specified as a year, a month,  a  day,  and  a
		       time  of day. The time of day has the same format as the AT field of rule lines. If this is specified, the time zone infor-
		       mation is generated from the given UTC offset and rule change until the time specified.

		       The month, day, and time of day have the same format as the IN, ON, and AT columns of a rule; trailing columns can be omit-
		       ted, and default to the earliest possible value for the missing columns.

		       The  next  line must be a "continuation" line. This line has the same form as a zone line except that the string "Zone" and
		       the name are omitted. The continuation line places information starting at the time specified as the  UNTIL  field  in  the
		       previous  line in the file used by the previous line. Continuation lines can contain an UNTIL field, just as zone lines do,
		       indicating that the next line is a further continuation.

   Link
       A link line has the form:

       Link   LINK-FROM   LINK-TO

       For example:

       Link   Europe/Istanbul Asia/Istanbul

       The LINK-FROM field should appear as the NAME field in some zone line; the LINK-TO field is used as an alternate name for that zone.

       Except for continuation lines, lines can appear in any order in the input.

       -d directory    Creates	time  conversion  information  files  in  the  directory  directory  rather  than  in	the   standard	 directory
		       /usr/share/lib/zoneinfo.

       -l localtime    Uses the given time zone as local time localtime. zic acts as if the file contained a link line of the form:

		       Link localtime localtime

       -p posixrules   Uses the rules of the given time zone posixrules when handling POSIX-format time zone environment variables. zic acts as if
		       the input contained a link line of the form:

		       Link posixrules posixrules

		       This option is not used by ctime(3C) and mktime(3C) in the Solaris environment.

       -s	       Limits time values stored in output files to values that are the same whether they are taken to be signed or unsigned.  You
		       can use this option to generate SVVS-compatible files.

       -v	       Complains  if a year that appears in a data file is outside the range of years representable by system time values (0:00:00
		       a.m. UTC, January 1, 1970, to 3:14:07 a.m. UTC, January 19, 2038).

       -y yearistype   Uses the given command yearistype rather than yearistype when checking year types (see Rules under DESCRIPTION).

       filename        A file containing input lines that specify the time conversion information files to be created. If a filename is  '-',  the
		       standard input is read.

       /usr/share/lib/zoneinfo	       Standard directory used for created files

       /usr/share/lib/zoneinfo/src     Directory containing source files

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

       time(1), zdump(1M), ctime(3C), mktime(3C), attributes(5)

       For  areas  with  more  than  two types of local time, you might need to use local standard time in the AT field of the earliest transition
       time's rule to ensure that the earliest transition time recorded in the compiled file is correct.

								    1 Dec 1998								   zic(1M)