AttributeTable at = das.getAttributeTable(attName);
Enumeration<String> e = at.getNames();
// NetCDF global attributes
// store attribute name, all values for ALL attributes (strings and numerics)
ProcessingInstructions processingInstructions = config.getProcessingInstructions();
if (attName.equals(NC_GLOBAL)) {
while (e.hasMoreElements()) {
String key = e.nextElement();
Attribute att = at.getAttribute(key);
// convert all DAS attribute names to lower case
String lkey = key.toLowerCase();
// look for global attribute name in date/time configuration specification
String dateTimeFormatKey = OpendapConfigMetKeys.DATETIME_FORMAT_ATTR + ":" + lkey;
String dateTimeFormatValue = processingInstructions.getInstructionValue(dateTimeFormatKey);
// add this attribute as properly formatted date/time
if (StringUtils.hasText(dateTimeFormatValue)) {
DateFormat inFormat = new SimpleDateFormat(dateTimeFormatValue);
Enumeration<String> edt = att.getValues();
while (edt.hasMoreElements()) {