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Class template dst_calc_engine

boost::date_time::dst_calc_engine — Compile-time configurable daylight savings time calculation engine.


template<typename date_type, typename time_duration_type, typename dst_traits> 
class dst_calc_engine {
// types
typedef date_type::year_type year_type;
typedef date_type::calendar_type calendar_type;
typedef dst_calculator< date_type, time_duration_type > dstcalc;

// public static functions
local_is_dst(const date_type &, const time_duration_type &) ;
bool is_dst_boundary_day(date_type) ;
time_duration_type dst_offset() ;
date_type local_dst_start_day(year_type) ;
date_type local_dst_end_day(year_type) ;


dst_calc_engine public static functions

  1. time_is_dst_result 
    local_is_dst(const date_type & d, const time_duration_type & td) ;

    Determines if the time is really in DST or not. Also checks for invalid and ambiguous.

  2. bool is_dst_boundary_day(date_type d) ;
  3. time_duration_type dst_offset() ;
  4. date_type local_dst_start_day(year_type year) ;
  5. date_type local_dst_end_day(year_type year) ;
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