• The time classes needed for the example are configured in the AMO SIPCO.
• Time class 1, Los Angeles with automatic switch to standard time, minus 2 hours relative to Houston (system time).
  This class supports changes from standard time to daylight savings time and back; these take place automatically on the last Sunday in March at 2:30 a.m. and on the last Sunday in October at 3:30 a.m.
  The time class and the automatic switches for daylight savings time are configured as follows:

  	Configuration Management -> System Data -> IPDA -> IPDA System Data
  	CHANGE-SIPCO:TYPE=TCLASS,TCLASS=1,OFFSET=120,DIRECT=WEST, TEXT=”TIME ZONE: -2H L.A.”,DSTSW=AUTO,MONTHDST=3, WKDAYDST=SU,DAYNODST=LAST,HOURDST=2,MINDST=30, MONTHDST=10,WKDAYST=SUN,DAYNODST=LAST, HOURNT=3,MINNT=30;

  Time class 2, New York, with manual switch to standard time, plus 1 hour relative to Houston (system time).
  This class supports changes from standard time to daylight savings time and back; these take place on March 27th at 2:00 a.m. and on October 30th at 3:00 a.m.
  The time class and the manual switches for daylight savings time are configured as follows:

  	Configuration Management -> System Data -> IPDA -> IPDA System Data
  	CHANGE-SIPCO:TYPE=TCLASS,TCLASS=2,OFFSET=60,DIRECT=EAST, TEXT=”TIME ZONE: +1H N.Y.”,DSTSW=MAN,MONTHNT=3, DAYDST=27,HOURDST=2,MINDST=0,MONTHNT=10,DAYNT=30, HOURNT=3,MINNT=0;

• The time class configuration now looks as follows:

---------------------------------------------------------------- 
+------+------------+------------+--------------------+--------+ 
|INDEX |   OFFSET   |    DIRECT  |        TEXT        | DSTSW  | 
+------+------------+------------+--------------------+--------+ 
|   1  |     120    |    WEST    |TIME ZONE: -2H L.A. | AUTO   | 
+------+------------+------------+--------------------+--------+ 
|   2  |      60    |    EAST    |TIME ZONE: +1H N.Y. |  MAN   | 
+------+------------+------------+--------------------+--------+ 

+------+-----+-------+-----------+-----------+--------+--------+ 
|INDEX |     | MONTH | WEEKDAY   | DAYNUMBER | HOUR   | MINUTE | 
+------+-----+-------+-----------+-----------+--------+--------+ 
|   1  |DST: |   3   |    SU     |  LAST     |    2   |   30   | 
|   1  |NT:  |  10   |    SU     |  LAST     |    3   |   30   | 
+------+-----+-------+-----------+-----------+--------+--------+ 

+------+-----+-----------+------------+------------+-----------+ 
|INDEX |     |   MONTH   | DAYOFMONTH |   HOUR     |  MINUTE   | 
+------+-----+-----------+------------+------------+-----------+ 
|   2  |DST: |     3     |     27     |      2     |     0     | 
|   2  |NT:  |    10     |     30     |      3     |     0     | 
+------+-----+-----------+------------+------------+-----------+