Untitled

How to convert DateTime in Specific timezone?
public ConvertDate(DateTime? dateTime)
{
    if (dateTime != null)
    {
        Value = (DateTime)dateTime;
        TimeZone = GetFromConfig.DefaultTimeZone();
    }
}


public ConvertDate(DateTime? dateTime, int GMTTimeZone)
{
    if (dateTime != null)
    {
        Value = (DateTime)dateTime;
        TimeZone = GMTTimeZone;
    }
}


public int TimeZone
{
    get { return m_TimeZone; }
    set { m_TimeZone = value; }
}


DateTime m_Value;
public DateTime Value
{
    get { return m_Value; }
    set
    {
        m_Value = value;
        DateTime converted = m_Value.ToUniversalTime().ToLocalTime();
    }
}

DateTime SampleInputFromUser = new DateTime(2012, 1, 22);
ConvertDate newConversion = new ConvertDate(SampleInputFromUser, 21);
DateTime answer = newConversion.Value;

TimeZoneInfo timeInfo = TimeZoneInfo.FindSystemTimeZoneById(GetFromConfig.ManilaTimeZoneKey());
ManilaTime = TimeZoneInfo.ConvertTime(dateTime.Value, TimeZoneInfo.Local, timeInfo).ToUniversalTime();

DateTime _ManilaTime;
public DateTime ManilaTime
{
    get { return _ManilaTime; }
    set { _ManilaTime = value; }
}

DateTime utcTime = inputDateTime.ToUniversalTime();

DateTime userTime = TimeZoneInfo.ConvertTimeFromUtc(dbDateTime, timeInfo);