Calculate local time from UTC time based on GPS coordinates

!LocalTimeFromCoordinates.md

Description

This gist is a code sample which shows how we can determine the current local time for a location, using the GPS coordinates for that location. It makes use of the GeoTimeZone NuGet package.

Program.cs

using System;
using GeoTimeZone;
using TimeZoneConverter;

namespace TimeZoneDetermination
{
    class Program
    {
        static void Main(string[] args)
        {
            // This code snippet makes use of the GeoTimeZone and TimeZoneConverter
            // libraries that are available via GitHub.

            // Get the TimeZone that is valid for the specified coordinates and convert the
            // resulting TimeZone to a TimeZoneInfo object.

            TimeZoneResult timeZone = TimeZoneLookup.GetTimeZone(50.839686, 3.626073);

            TimeZoneInfo timeZoneInfo = TZConvert.GetTimeZoneInfo(timeZone.Result);

            // Use the information to calculate the local time for that TimeZone, given an UTC date/time

            DateTimeOffset utcNow = DateTimeOffset.UtcNow;
            DateTimeOffset localTimeNow = TimeZoneInfo.ConvertTimeFromUtc(utcNow.DateTime, timeZoneInfo);

            Console.WriteLine($"UTC now: {utcNow}");
            Console.WriteLine($"LT now: {localTimeNow}");
        }
    }
}

TimeZoneDetermination.csproj

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp3.1</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="GeoTimeZone" Version="4.0.0" />
    <PackageReference Include="TimeZoneConverter" Version="3.2.0" />
  </ItemGroup>

</Project>

This gist displays how we can determine the current local time for a specified gps location.