...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::null_dst_rules — Used for local time adjustments in places that don't use dst.
template<typename date_type_, typename time_duration_type_> class null_dst_rules { public: // types typedef time_duration_type_ time_duration_type; typedef date_type_ date_type; // public static functions static time_is_dst_result local_is_dst(const date_type &, const time_duration_type &) ; static time_is_dst_result utc_is_dst(const date_type &, const time_duration_type &) ; static bool is_dst_boundary_day(date_type) ; static time_duration_type dst_offset() ; };