public static DateTime ToUtcDateTime(this DateTime dateTime) { var result = TimeZoneInfo.ConvertTimeToUtc(dateTime, ConvertHelpers.FindOperatingSystemTimeZoneById(ConstantHelpers.TIMEZONEINFO.LINUX_TIMEZONE_ID, ConstantHelpers.TIMEZONEINFO.OSX_TIMEZONE_ID, ConstantHelpers.TIMEZONEINFO.WINDOWS_TIMEZONE_ID)); return(result); }