Update TimeZoneInfo.xml (dotnet#5173)

Author: Rob-S

xml/System/TimeZoneInfo.xml

@@ -652,7 +652,7 @@
 ## Remarks  
  When performing the conversion, the <xref:System.TimeZoneInfo.ConvertTimeBySystemTimeZoneId%2A> method applies any adjustment rules in effect in the `destinationTimeZoneId` time zone.  
   
- This overload is identical to calling the <xref:System.TimeZoneInfo.ConvertTime%28System.DateTime%2CSystem.TimeZoneInfo%29> method, except that it allows you to specify the destination time zone by its identifier rather than by an object reference. This method is most useful when you must convert a time without retrieving the time zone object that corresponds to it and you do not need to know whether the converted time is standard or daylight saving time.  
+ This overload is identical to calling the <xref:System.TimeZoneInfo.ConvertTime%28System.DateTimeOffset%2CSystem.TimeZoneInfo%29> method, except that it allows you to specify the destination time zone by its identifier rather than by an object reference. This method is most useful when you must convert a time without retrieving the time zone object that corresponds to it and you do not need to know whether the converted time is standard or daylight saving time.  
   
  Because the `dateTimeOffset` parameter represents a date and time together with that time's offset from Coordinated Universal Time (UTC), it cannot represent either an ambiguous time or an invalid time.