...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::date_time::us_dst_rules — Depricated: Class to calculate dst boundaries for US time zones.
// In header: <boost/date_time/dst_rules.hpp> template<typename date_type_, typename time_duration_type_, unsigned int dst_start_offset_minutes = 120, short dst_length_minutes = 60> class us_dst_rules { public: // types typedef time_duration_type_ time_duration_type; typedef date_type_ date_type; typedef date_type::year_type year_type; typedef date_type::calendar_type calendar_type; typedef date_time::last_kday_of_month< date_type > lkday; typedef date_time::first_kday_of_month< date_type > fkday; typedef date_time::nth_kday_of_month< date_type > nkday; typedef dst_calculator< date_type, time_duration_type > dstcalc; // public static functions static time_is_dst_result local_is_dst(const date_type &, const time_duration_type &) ; static bool is_dst_boundary_day(date_type) ; static date_type local_dst_start_day(year_type) ; static date_type local_dst_end_day(year_type) ; static time_duration_type dst_offset() ; };
us_dst_rules
public static functionsstatic time_is_dst_result local_is_dst(const date_type & d, const time_duration_type & td) ;Calculates if the given local time is dst or not.
Determines if the time is really in DST or not. Also checks for invalid and ambiguous.
static bool is_dst_boundary_day(date_type d) ;
static date_type local_dst_start_day(year_type year) ;
static date_type local_dst_end_day(year_type year) ;
static time_duration_type dst_offset() ;