Solution: International Meeting Scheduler

namespace Corporate;
public class MeetingScheduler
{
    public static DateTimeOffset GetLocalMeetingTime(DateTimeOffset meetingUtc, string timeZoneId)
    {
        TimeZoneInfo targetZone = TimeZoneInfo.FindSystemTimeZoneById(timeZoneId);
        
        return TimeZoneInfo.ConvertTime(meetingUtc, targetZone);
    }
}