Added contributed DateTime patch to set a GMT-based _localzone if the

local timezone name does not appear in the set of recognized time zone
names.

lib/python/DateTime/DateTime.py

@@ -84,7 +84,7 @@
 ##############################################################################
 """Encapsulation of date/time values"""
 
-__version__='$Revision: 1.34 $'[11:-2]
+__version__='$Revision: 1.35 $'[11:-2]
 
 
 import sys, os, math, regex, DateTimeZone
@@ -690,8 +690,20 @@ class DateTime:
                   'thursday': 5,  'thurs': 5, 'thur': 5, 'thu': 5,
                   'friday': 6,    'fri': 6,
                   'saturday': 7,  'sat': 7}
-    try: _localzone  =_cache._zmap[lower(tzname[0])]
-    except: _localzone=''
+
+
+    try: _localzone=_cache._zmap[lower(tzname[0])]
+    except:
+        try:
+            t=time()
+            localzone=mktime(gmtime(t))-t
+            localzone=int(round(-localzone/(60*60)))
+            if localzone >= 0:
+                zn='+%d' % localzone
+            else: lz=str(localzone)
+            _localzone=_cache._zmap[lower('GMT%s' % lz)]
+        except: _localzone=''
+
     _tzinfo     =_cache()
 
     def _parse(self,string):