Use adjusted local date for civil time calculation

[dickermoshe]

This fixes an issue where the returned time was 24 hours off.

Test Case:

{
    "iteration": 741,
    "year": 2058,
    "month": 7,
    "day": 31,
    "latitude": -18.88480386694347,
    "longitude": -174.522379072958,
    "elevation": 2671.332842032057,
    "timezone": "Pacific/Tongatapu",
    "zman": "getFixedLocalChatzos",
    "ateretTorahSunsetOffsetMinutes": 19,
    "candleLightingOffsetMinutes": 6,
    "useAstronomicalChatzosForOtherZmanim": true,
    "useElevation": false
  }

[KosherJava]

Thanks @dickermoshe - Looks good.