Select only United State Time Zones

Question

Is there an easy way to create a list of only the time zones in US? I am using this code but it produces every time zone and I only want Pacific, Central, Mountain, and Eastern

public List<TimeZoneInfo> _timeZones = TimeZoneInfo.GetSystemTimeZones().ToList();

Answer 1

I created a list of US time zones:

   var zones = new List<TimeZoneInfo> {
    TimeZoneInfo.FindSystemTimeZoneById("Pacific Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("Mountain Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("Central Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("US Eastern Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("US Mountain Standard Time"),            
    TimeZoneInfo.FindSystemTimeZoneById("Hawaiian Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("Alaskan Standard Time"),
};

Answer 2

I think this is an updated list of US timezones:

var timezones = new List<TimeZoneInfo> {
    TimeZoneInfo.FindSystemTimeZoneById("Pacific Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("Mountain Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("Central Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("US Eastern Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("US Mountain Standard Time"),            
    TimeZoneInfo.FindSystemTimeZoneById("Hawaiian Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("Alaskan Standard Time"),
    TimeZoneInfo.FindSystemTimeZoneById("Pacific Standard Time (Mexico)"),
    TimeZoneInfo.FindSystemTimeZoneById("Central Standard Time (Mexico)"),
    TimeZoneInfo.FindSystemTimeZoneById("UTC")
};