CLASS TEMPLATE(3)

NAME
boost::date_time::null_dst_rules - Used for local time adjustments in places that don't use dst.

SYNOPSIS

// In header: <boost/date_time/dst_rules.hpp>
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();
};

DESCRIPTION

  null_dst_rules public static functions

    1.

    static time_is_dst_result
    local_is_dst(const date_type &, const time_duration_type &);

    Calculates if the given local time is dst or not.

    2.

    static time_is_dst_result
    utc_is_dst(const date_type &, const time_duration_type &);
    Calculates if the given utc time is in dst. .RE

        3.

        static bool is_dst_boundary_day(date_type d);

        4.

        static time_duration_type dst_offset();