text: // Copyright 2016 Google Inc. All Rights Reserved.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //   http://www.apache.org/licenses/LICENSE-2.0
  //
  //   Unless required by applicable law or agreed to in writing, software
  //   distributed under the License is distributed on an "AS IS" BASIS,
  //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  //   See the License for the specific language governing permissions and
  //   limitations under the License.
  
  #include <chrono>
  #include <iostream>
  #include <string>
  
  #include "cctz/civil_time.h"
  #include "cctz/time_zone.h"
  
  int main() {
    cctz::time_zone syd;
    if (!cctz::load_time_zone("Australia/Sydney", &syd)) return -1;
  
    // Neil Armstrong first walks on the moon
    const auto tp1 =
        cctz::convert(cctz::civil_second(1969, 7, 21, 12, 56, 0), syd);
  
    const std::string s = cctz::format("%Y-%m-%d %H:%M:%S %z", tp1, syd);
    std::cout << s << "\n";
  
    cctz::time_zone nyc;
    cctz::load_time_zone("America/New_York", &nyc);
  
    const auto tp2 =
        cctz::convert(cctz::civil_second(1969, 7, 20, 22, 56, 0), nyc);
    return tp2 == tp1 ? 0 : 1;
  }
  