Interface
Constructor
os_simple_time_zone_rule(
const os_calendar_date& start_point ,
const os_calendar_date& end_point ,
os_year_t start_year ,
os_year_t end_year )
Constructs a dst rule
that is valid from start_point in the year start_year
through end_point in the year end_year
. Assume a sixty-minute dst adjustment value.
Constructor
os_simple_time_zone_rule(
const os_calendar_date& start_point ,
const os_calendar_date& end_point ,
os_year_t start_year ,
os_year_t end_year ,
const os_time_period& adjustment )
Constructs a dst rule
that is valid from start_point in the year start_year
through end_point in the year end_year
. When dst is in effect, the time is corrected by an adjustment
time period.
is_in_effect
/*
virtual */ bool is_in_effect( const os_time& time
, const os_date& date
, bool std_time
) const
Returns true
if this rule is in effect on date at time
, where std_time is true if representation is
standard and false if representation is local.
Throws: os_time_toolkit_error
