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Brazilian DST Rule
Daylight saving time starts at 00:00 local time on the third Sunday in October and ends at 00:00 local time
on the third Sunday in February.
Selected by using
DST_RULE = BRAZIL
in the configuration file.
Brazilian DST rule provides an exception should DST end during Carnival, stating that "details will be
decided in time". For this type of exception, use a custom DST rule, see section
for details.
User-Defined DST Rule
To use a custom DST rule, place the following in the configuration file:
DST_RULE = CUSTOM
Additionally, values for DST_BEGIN and DST_END also have to be defined. These values can be specified
using relative dates ("3rd Sunday in October") or fixed dates ("the 3rd of March").
For the specific syntax, see the following sections.
Begin / End Using Relative Dates
Use a value in the form
m.w.d/hh:mm
to specify day d of week w of month m. Day d must be between 0 (Sunday) and 6 (Saturday). Week w must
be between 1 and 5; week 1 is the first week in which day d occurs, and week 5 specifies the last d day in
the month. The month m should be between 1 (January) and 12 (December). Time hh:mm should be
specified as local time. DST should begin at 02:00
Example: on the second Sunday in March and end at 02:00 on the last Friday in October:
DST_RULE = CUSTOM
DST_BEGIN = M3.2.0/02:00 ; second Sunday in March
DST_END = M10.5.5/02:00 ; last Friday in October
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Kronos Series 3
User-Defined DST Rule
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