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## Class template local_adjustor

boost::date_time::local_adjustor —

Template that simplifies the creation of local time calculator.

## Synopsis

    template<typename time_type, short utc_offset, typename dst_rule>
    class local_adjustor {
    public:
      // types
      typedef time_type::time_duration_type                                                                       time_duration_type;
      typedef time_type::date_type                                                                                date_type;
      typedef static_local_time_adjustor< time_type, dst_rule, utc_adjustment< time_duration_type, utc_offset > > dst_adjustor;

      // public static functions
      time_type utc_to_local(const time_type &) ;
      time_type local_to_utc(const time_type &,
                             date_time::dst_flags = date_time::calculate) ;
    };

## Description

Use this template to create the timezone to utc convertors as required.

This class will also work for other regions that don't use dst and have a utc offset which is an integral number of hours.

Template Parameters -time_type -- Time class to use -utc_offset -- Number hours local time is adjust from utc -use_dst -- true (default) if region uses dst, false otherwise For example:

      //eastern timezone is utc-5
         typedef date_time::local_adjustor<ptime, -5, us_dst> us_eastern;
         typedef date_time::local_adjustor<ptime, -6, us_dst> us_central;
         typedef date_time::local_adjustor<ptime, -7, us_dst> us_mountain;
         typedef date_time::local_adjustor<ptime, -8, us_dst> us_pacific;
         typedef date_time::local_adjustor<ptime, -7, no_dst> us_arizona;

### `local_adjustor` public static functions

1.     time_type utc_to_local(const time_type & t) ;

   Convert a utc time to local time.

2.     time_type local_to_utc(const time_type & t,
                              date_time::dst_flags dst = date_time::calculate) ;

   Convert a local time to utc.

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