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5.7.5 DST setting (Summer time setting)
When the summer time (DST) is applied, the user should set the beginning and the ending
dates of the DST in the clock function. The user should set On for the setting [Summer time]
for DST.
Note: The clock function is not designed for particular DSTs such as they are depending
on the religious events and the astronomy.
(i) DST set by the day (Mon to Sun) of week
For example, when the DST starts at 01:00 a.m. on Sunday of the fifth week in March and it
ends at 2:00 a.m. on Sunday of the fourth week in October, the user has the following settings.
Note that transposing the calendar is required, as shown in Figure 5.7-10; accordingly the first
of the month is located at the first row and the first column of the transposed calendar.
Setting 3 for the [Start_Month]
Setting 5 for the [Start_Week]
Setting Sun for the [Start_Wday]
Setting 1 for the [Start_Hour]
Setting 10 for the [End_Month]
Setting 4 for the [End_Week]
Setting Sun for the [End_Wday]
Setting 2 for the [End_Hour]
Beginning of the DST at 01:00 a.m. in Mar. 29
Ending of the DST at 02:00 a.m. in Oct. 25
Figure 5.7-10 DST setting examples by the day of week
(ii) DST set by the day (1
st
or 15
th
) of month
For example, when the DST starts at 01:00 p.m. on the first day in March and it ends at 3:00
p.m. on the middle day in October; the user has the following settings.
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