/// <summary>
/// Create a header item with a date/time value.
///
/// If the passed time is Local, it is converted to UTC.
/// </summary>
/// <param name="keyName"></param>
/// <param name="nativeValue"></param>
/// <param name="comment"></param>
public FitsHeaderItem(string keyName, DateTime nativeValue, string comment)
{
KeyName = keyName;
Value = DateCvt.Convert(nativeValue);
ValueType = HeaderValueType.DateTime;
Units = null;
Comment = comment;
}
