const SunCalc = require('suncalc');
const moment = require('moment-timezone');

const dates = ['2016-03-20', '2016-06-21', '2016-09-22', '2016-12-21'];

dates.forEach((target) => {
  console.log('==========')
  for (let h = 0; h < 24; h++) {
    for (let m = 0; m < 60; m++) {
      const date = new Date(`${target} ${h}:${m}:0`);
      console.log(moment(date).tz('Asia/Tokyo').format(), SunCalc.getPosition(date, 34.649394, 135.001478).altitude);
    }
  }
});