尝试一下：

  var timeUtc = DateTime.UtcNow; 
 TimeZoneInfo EasternZone = TimeZoneInfo.FindSystemTimeZoneById（东部标准时间）; 
 DateTime EasternTime = TimeZoneInfo.ConvertTimeFromUtc（timeUtc，EasternZone）; 
 

I'm trying to create an application that triggers some code when the financial markets are open. Basically in pseudo code:

if(9:30AM ET < Time.Now < 4:00PM ET) {//do something}

Is there a way I can do this using the DateTime object in C#?

Try this:

var timeUtc = DateTime.UtcNow;
TimeZoneInfo easternZone = TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time");
DateTime easternTime = TimeZoneInfo.ConvertTimeFromUtc(timeUtc, easternZone);