diff -r 000000000000 -r b97547f5f1fa embedded/mx/DateTime/Timezone.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/embedded/mx/DateTime/Timezone.py	Wed Nov 05 15:52:50 2008 +0100
@@ -0,0 +1,169 @@
+# -*- coding: latin-1 -*-
+
+""" Timezone information.
+
+    XXX This module still has prototype status and is undocumented.
+
+    XXX Double check the offsets given in the zonetable below.
+
+    XXX Add TZ environment variable parsing functions. The REs are already
+        there.
+
+    Copyright (c) 1998-2000, Marc-Andre Lemburg; mailto:mal@lemburg.com
+    Copyright (c) 2000-2007, eGenix.com Software GmbH; mailto:info@egenix.com
+    See the documentation for further information on copyrights,
+    or contact the author. All Rights Reserved.
+
+"""
+import DateTime
+import re,string
+
+### REs
+
+# time zone parsing
+isozone = ('(?P<zone>[+-]\d\d:?(?:\d\d)?|Z)')
+zone = ('(?P<zone>[A-Z]+|[+-]\d\d?:?(?:\d\d)?)')
+zoneoffset = ('(?:'
+              '(?P<zonesign>[+-])?'
+              '(?P<hours>\d\d?)'
+              ':?'
+              '(?P<minutes>\d\d)?'
+              '(?P<extra>\d+)?'
+              ')'
+              )
+
+# TZ environment variable parsing
+dstswitchtime = ('(?P<hour>\d\d?):?'
+                 '(?P<minute>\d\d)?:?'
+                 '(?P<second>\d\d)?')
+dstswitch = ('(?:'
+              '(?P<doy>\d+)|'
+              '(?:J(?P<jdoy>\d+))|'
+              '(?:M(?P<month>\d+).(?P<week>\d+).(?P<day>\d+))'
+             ')'
+             '(?:/' + dstswitchtime + ')?'
+             )
+
+# XXX Doesn't work since re doesn't like multiple occurrences of
+#     group names.
+#tz = ('(?::(?P<filename>.+))|'
+#      '(?P<std>[A-Z]+)' + zoneoffset + 
+#      '(?:'
+#       '(?P<dst>[A-Z]+)' + zoneoffset + '?'+
+#       '(?:[;,]' + dstswitch + '[;,]' + dstswitch + ')'
+#      ')?'
+#      )
+
+# Compiled RE objects
+isozoneRE = re.compile(zone)
+zoneRE = re.compile(zone)
+zoneoffsetRE = re.compile(zoneoffset)
+#tzRE= re.compile(tz)
+
+### Time zone offset table
+#
+# The offset given here represent the difference between UTC and the
+# given time zone.
+#
+# Additions and corrections are always welcome :-)
+#
+# Note that some zone names are ambiguous, e.g. IST can refer to Irish
+# Summer Time, Indian Standard Time, Israel Standard Time. We've
+# usualy chosen meaning with the most wide-spread use.
+#
+zonetable = {
+              # Timezone abbreviations
+              # Std     Summer
+
+              # Standards
+              'UT':0,
+              'UTC':0,
+              'GMT':0,
+
+              # A few common timezone abbreviations
+              'CET':1,  'CEST':2, 'CETDST':2, # Central European
+              'MET':1,  'MEST':2, 'METDST':2, # Mean European
+              'MEZ':1,  'MESZ':2,             # Mitteleuropäische Zeit
+              'EET':2,  'EEST':3, 'EETDST':3, # Eastern Europe
+              'WET':0,  'WEST':1, 'WETDST':1, # Western Europe
+              'MSK':3,  'MSD':4,  # Moscow
+              'IST':5.5,          # India
+              'JST':9,            # Japan
+              'KST':9,            # Korea
+              'HKT':8,            # Hong Kong
+
+              # US time zones
+              'AST':-4, 'ADT':-3, # Atlantic
+              'EST':-5, 'EDT':-4, # Eastern
+              'CST':-6, 'CDT':-5, # Central
+              'MST':-7, 'MDT':-6, # Midwestern
+              'PST':-8, 'PDT':-7, # Pacific
+
+              # Australian time zones
+              'CAST':9.5, 'CADT':10.5, # Central
+              'EAST':10,  'EADT':11,   # Eastern
+              'WAST':8,   'WADT':9,    # Western
+              'SAST':9.5, 'SADT':10.5, # Southern
+
+              # US military time zones
+              'Z': 0,
+              'A': 1,
+              'B': 2,
+              'C': 3,
+              'D': 4,
+              'E': 5,
+              'F': 6,
+              'G': 7,
+              'H': 8,
+              'I': 9,
+              'K': 10,
+              'L': 11,
+              'M': 12,
+              'N':-1,
+              'O':-2,
+              'P':-3,
+              'Q':-4,
+              'R':-5,
+              'S':-6,
+              'T':-7,
+              'U':-8,
+              'V':-9,
+              'W':-10,
+              'X':-11,
+              'Y':-12
+              }    
+
+def utc_offset(zone,
+
+               atoi=string.atoi,zoneoffset=zoneoffsetRE,
+               zonetable=zonetable,zerooffset=DateTime.DateTimeDelta(0),
+               oneMinute=DateTime.oneMinute,upper=string.upper):
+
+    """ utc_offset(zonestring)
+
+        Return the UTC time zone offset as DateTimeDelta instance.
+
+        zone must be string and can either be given as +-HH:MM,
+        +-HHMM, +-HH numeric offset or as time zone
+        abbreviation. Daylight saving time must be encoded into the
+        zone offset.
+
+        Timezone abbreviations are treated case-insensitive.
+
+    """
+    if not zone:
+        return zerooffset
+    uzone = upper(zone)
+    if zonetable.has_key(uzone):
+        return zonetable[uzone]*DateTime.oneHour
+    offset = zoneoffset.match(zone)
+    if not offset:
+        raise ValueError,'wrong format or unknown time zone: "%s"' % zone
+    zonesign,hours,minutes,extra = offset.groups()
+    if extra:
+        raise ValueError,'illegal time zone offset: "%s"' % zone
+    offset = int(hours or 0) * 60 + int(minutes or 0)
+    if zonesign == '-':
+        offset = -offset
+    return offset*oneMinute
+