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Annotation of coherent/a/usr/man/MULTI/timezone, revision 1.1

1.1     ! root        1: 
        !             2: 
        !             3: TIMEZONE              Environmental Variable             TIMEZONE
        !             4: 
        !             5: 
        !             6: 
        !             7: 
        !             8: Time zone information
        !             9: 
        !            10: TTIIMMEEZZOONNEE=_s_t_a_n_d_a_r_d:_o_f_f_s_e_t[:_d_a_y_l_i_g_h_t: _d_a_t_e:_d_a_t_e:_h_o_u_r:_m_i_n_u_t_e_s]
        !            11: 
        !            12: TIMEZONE  is an  environmental parameter  that  holds information
        !            13: about  the  user's  time  zone.   This  information  is  used  by
        !            14: COHERENT's time  routines to  construct their description  of the
        !            15: current time and day.
        !            16: 
        !            17: To set the TIMEZONE parameter, use the sseett command, as follows:
        !            18: 
        !            19: 
        !            20:         set TIMEZONE=[description]
        !            21: 
        !            22: 
        !            23: where [description] is  the string that describes your time zone.
        !            24: What this string consists of will be described below.  Most users
        !            25: write this  command into the  file .pprrooffiillee, so  that TIMEZONE is
        !            26: set automatically whenever they log onto the COHERENT system.
        !            27: 
        !            28: ***** The Description String *****
        !            29: 
        !            30: A TTIIMMEEZZOONNEE  description string consists of  seven fields that are
        !            31: separated by  colons.  Fields  1 and 2  must be filled;  fields 3
        !            32: through 7 are optional.
        !            33: 
        !            34: Field 1 gives the name of your standard time zone.  Field 2 gives
        !            35: the  time zone's  offset  from Greenwich  Mean  Time in  minutes.
        !            36: Offsets are  positive for time zones west  of Greenwich and nega-
        !            37: tive for  time zones  east of  Greenwich.  For example,  users in
        !            38: Chicago set these fields as follows:
        !            39: 
        !            40: 
        !            41:         TIMEZONE=CST:360
        !            42: 
        !            43: 
        !            44: CCSSTT  is an  abbreviation for Central  Standard Time,  that area's
        !            45: time zone; and 360 refers to the fact that Chicago's time zone is
        !            46: 360 minutes (six hours) behind that of Greenwich.
        !            47: 
        !            48: Field 3  gives the name  of the local daylight  saving time zone.
        !            49: In Chicago, for example, this field would be set as follows:
        !            50: 
        !            51: 
        !            52:         TIMEZONE=CST:360:CDT
        !            53: 
        !            54: 
        !            55: CDT is an abbreviation for Central Daylight Time.  The absence of
        !            56: this field indicates that  your area does not use daylight saving
        !            57: time.
        !            58: 
        !            59: Fields 4  and 5 specify  the dates on which  daylight saving time
        !            60: begins and ends.   If field 3 is set but  fields 4 and 5 are not,
        !            61: changes between  standard time and  daylight saving time  are as-
        !            62: 
        !            63: 
        !            64: COHERENT Lexicon                                           Page 1
        !            65: 
        !            66: 
        !            67: 
        !            68: 
        !            69: TIMEZONE              Environmental Variable             TIMEZONE
        !            70: 
        !            71: 
        !            72: 
        !            73: sumed to occur at the times legislated in the United States: at 2
        !            74: A.M. standard  time on the first  Sunday in April, and  at 2 A.M.
        !            75: daylight saving time on the last Sunday in October.
        !            76: 
        !            77: Fields  4  and  5 each  consist  of  three  numbers separated  by
        !            78: periods.  The first  number specifies which occurrence of the day
        !            79: in the month marks the change, counting positive occurrences from
        !            80: the beginning of the  month and negative occurrences from the the
        !            81: end of the month.  The second number specifies a day of the week,
        !            82: numbering Sunday  as one.  The third number  specifies a month of
        !            83: the  year, numbering  January as  one.   For example,  in Chicago
        !            84: fields 4 and 5 are set to the following:
        !            85: 
        !            86: 
        !            87:         TIMEZONE=CST:360:CDT:1.1.4:-1.1.10
        !            88: 
        !            89: 
        !            90: If the first number in either field is set to zero, then the last
        !            91: two numbers  are assumed to  indicate an absolute  date.  This is
        !            92: done because some countries switch to daylight saving time on the
        !            93: same day each year, instead of a given day of the week.
        !            94: 
        !            95: Finally, fields  6 and  7 specify  the hour of  the day  at which
        !            96: daylight saving  time begins and ends, and  the number of minutes
        !            97: of adjustment.  In Chicago, these are set as follows:
        !            98: 
        !            99: 
        !           100:         TIMEZONE=CST:360:CDT:1.1.4:-1.1.10:2:60
        !           101: 
        !           102: 
        !           103: The `2' of field 6  indicates that the switch to daylight savings
        !           104: time  occurs at  2 A.M.   The  ``60'' of  field 7  indicates that
        !           105: daylight  savings time  changes  the local  time  by 60  minutes.
        !           106: Although 60  minutes is the standard change,  some regions of the
        !           107: world shift by 30, 45, 90, or 120 minutes; the last shift is also
        !           108: called ``double daylight saving time''.
        !           109: 
        !           110: For an example of this variable's use in a program, see the entry
        !           111: for asctime.
        !           112: 
        !           113: ***** See Also *****
        !           114: 
        !           115: environmental variables, setenv, time (overview)
        !           116: 
        !           117: For  those  requiring  more  information  on this  subject,  much
        !           118: research has been  performed by astrologers.  See _T_i_m_e _C_h_a_n_g_e_s _i_n
        !           119: _t_h_e  _W_o_r_l_d,  compiled   by  Doris  Chase  Doane  (three  volumes,
        !           120: Hollywood, California, Professional Astrologers, Inc., 1970).
        !           121: 
        !           122: 
        !           123: 
        !           124: 
        !           125: 
        !           126: 
        !           127: 
        !           128: 
        !           129: 
        !           130: COHERENT Lexicon                                           Page 2
        !           131: 
        !           132: 

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