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#include "boost/date_time/local_time/local_time.hpp"
#include <iostream>
/* This example shows a program that calculates the arrival time of a plane
* that flys from Phoenix to New York. During the flight New York shifts
* into daylight savings time (Phoenix doesn't because Arizona doesn't use
* DST).
*
*
*/
int main()
{
using namespace boost::gregorian;
using namespace boost::local_time;
using namespace boost::posix_time;
//setup some timezones for creating and adjusting local times
//This user editable file can be found in libs/date_time/data.
tz_database tz_db;
try {
tz_db.load_from_file("../../data/date_time_zonespec.csv");
}catch(const data_not_accessible& dna) {
std::cerr << "Error with time zone data file: " << dna.what() << std::endl;
exit(EXIT_FAILURE);
}catch(const bad_field_count& bfc) {
std::cerr << "Error with time zone data file: " << bfc.what() << std::endl;
exit(EXIT_FAILURE);
}
time_zone_ptr nyc_tz = tz_db.time_zone_from_region("America/New_York");
//Use a newly created time zone rule
time_zone_ptr phx_tz(new posix_time_zone("MST-07:00:00"));
//local departure time in Phoenix is 11 pm on March 13 2010
// (NY changes to DST on March 14 at 2 am)
local_date_time phx_departure(date(2010, Mar, 13), hours(23),
phx_tz,
local_date_time::NOT_DATE_TIME_ON_ERROR);
local_date_time nyc_departure = phx_departure.local_time_in(nyc_tz);
time_duration flight_length = hours(4) + minutes(30);
local_date_time phx_arrival = phx_departure + flight_length;
local_date_time nyc_arrival = phx_arrival.local_time_in(nyc_tz);
std::cout << "departure PHX time: " << phx_departure << std::endl;
std::cout << "departure NYC time: " << nyc_departure << std::endl;
std::cout << "arrival PHX time: " << phx_arrival << std::endl;
std::cout << "arrival NYC time: " << nyc_arrival << std::endl;
}
/* Copyright 2005: CrystalClear Software, Inc
* http://www.crystalclearsoftware.com
*
* Subject to the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
*/
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