twileloop/Twileloop.Timezonev2.0.0

//System timezone 🡺 UTC timezone
var utcTime = DateTime.UtcNow;

3. UTC timezone 🡺 System timezone

//UTC timezone 🡺 System timezone
var mySystemTime = utcTime.UtcToSystemTimezone();

4. UTC timezone 🡺 Custom timezone

//UTC timezone 🡺 Custom timezone
var japanTime = utcTime.UtcToCustomTimezone("Asia/Tokyo");

5. Custom timezone 🡺 UTC timezone

//Custom timezone 🡺 UTC timezone
var japanTimeInUtc = japanTime.CustomTimezoneToUtc("Asia/Tokyo");

6. Custom timezone 🡺 Custom timezone

//Custom timezone 🡺 Custom timezone
var indianTime = japanTime.MigrateToTimezone("Asia/Tokyo", "Asia/Kolkata");

7. Timezone Abbreviation 🡺 Timezone Id

// Timezone Abbreviation 🡺 Timezone Id
var abbreviation = "IST";
var (displayName, timeZoneIds) = TimezoneHelper.AbbreviationToTimezone(abbreviation);

Console.WriteLine($"Abbreviation: {abbreviation}");
Console.WriteLine($"Full Display Name: {displayName}");
Console.WriteLine("Time Zone Identifiers:");

foreach (var timeZoneIda in timeZoneIds)
{
    Console.WriteLine(timeZoneIda);
}

8. Timezone Id 🡺 Timezone Abbreviation

// Timezone Id 🡺 Timezone Abbreviation
var timeZoneId = "Asia/Kolkata";
var (zoneAbbreviation, zoneDisplayName) = TimezoneHelper.TimezoneToAbbreviation(timeZoneId);

Console.WriteLine($"Time Zone Identifier: {timeZoneId}");
Console.WriteLine($"Abbreviation: {zoneAbbreviation}");
Console.WriteLine($"Full Display Name: {zoneDisplayName}");

9. Timezone Id 🡺 Countries Under Timezone

// Timezone Id 🡺 Country Codes
string timezone = "America/New_York";
List<(string CountryCode, string CountryName)> countriesUnderTimezone  = TimezoneHelper.GetCountriesUnderTimezone(timezone);

Console.WriteLine($"Countries under timezone '{timezone}':");
foreach (var country in countriesUnderTimezone)
{
    Console.WriteLine($"{country.CountryCode} | {country.CountryName}");
}

10. Country ISO Code 🡺 Timezones Under Country

// Country Code 🡺 Timezones
string countryCode = "US";
List<string> timezones = TimezoneHelper.GetTimezonesUnderCountry(countryCode);
Console.WriteLine($"Timezones under country '{countryCode}':");
foreach (string tz in timezones)
{
    Console.WriteLine($"{tz}");
}

11. Country Name 🡺 Country ISO Code

// Country Name 🡺 Country Code
string countryName = "United States";
string isoCountryCode = TimezoneHelper.CountryNameToAbbreviation(countryName);
Console.WriteLine($"Country name '{countryName}' has the abbreviation: {isoCountryCode}");

12. Country ISO Code 🡺 Country Names

// Country Code 🡺 Country Name 
string isoCode = "US";
string fullCountryName = TimezoneHelper.AbbreviationToCountryName(isoCode);
Console.WriteLine($"Abbreviation '{isoCode}' corresponds to the country: {fullCountryName}");

13. Timezones Sharing Same Offset (In Minuits)

//Find timezones sharing same offset (+5:30 is 330 mins)
var timezonesSharingSameOffset = TimezoneHelper.OffsetToTimezones(330);
timezonesSharingSameOffset.ForEach(timeZone =>
{
    Console.WriteLine(timeZone.DisplayName);
});

14. All Timezones

//Get all timezones
var allTimezones = TimezoneHelper.GetAllTimezones();
allTimezones.ForEach(timeZone =>
{
    Console.WriteLine(timeZone.ToString());
});

15. All Countries

//Get all countries
List<(string CountryCode, string CountryName)> allCountries = TimezoneHelper.GetAllCountries();
allCountries.ForEach(country =>
{
    Console.WriteLine($"{country.CountryCode} | {country.CountryName}");
});