Forum > Sony Ericsson / Sony > Symbian phones > Calendar sync BUG with new firmware

For P800 the following workaround have been introduced to allow correct synching
of appointments with SyncML servers in different time zones from the device. The
primary purpose of the workaround is to enable correct local sync with the PC Suite
for the P800.
The fix involves to set-up files being read in by Versit. The two files are:
C:\\system\data\GmtOffset.ini
This file contains a string on the format HH:MM and is the offset, in hours and
minutes, from GMT / UTC of the device. It is important that this file is set correctly by
the user when the device is first started in some kind of startup wizard. This file is
then used to convert incoming UTC times to Machine local time by adding or
removing the offset respectively. As this file is only set once then the time zone of
incoming vCalendar objects from SyncML will always be normalized to the first Time
zone the device was set up in. This is acceptable as all entries in Agenda never get
shifted when the device shifts time zone anyway.
C:\\system\data\Daylight.ini
This second file contains a list of daylight savings rules for the Time zone the device
was first set up in. These are off the format:
BEGIN:VCALENDAR
DAYLIGHT:TRUE;+01;20020331T000000;20021031T020000;+00;+01
DAYLIGHT:TRUE;-02;20030331T000000;20031031T020000;+00;+01
END:VCALENDAR
DAYLIGHT:;;;;UNUSEDSTRING;UNUSEDSTRING
When an entry is either exported or imported, its date will be checked against these
rules if is within any of these daylight rules then the SAVINGOFFSET will be either
added or subtracted depending on whether converting from UTC or to UTC.
These changes to Versit have been designed to only be applied when performing a
SyncML synch. It is therefore expected that the SyncML client / Agenda will set the
flag EExportLeaveAsLocalTime when exporting and EmportSyncML when
exporting.
If these files are missing SyncML sync will still work however the Time will be stored
on the device in UTC time.

The .ini files mentioned are copied over from the PC first time the user does a local
sync.

Problems that may occur due to the workaround
Users that are using remote synchronization can sometimes experience that the
time values in their calendar get shifted around after synchronizing. This kind of
behavior can occur if the user in question have ever used our bundled PC Suite and
synchronized locally after the first remote synchronization. Note that it is enough to
have used it once, they don't have to use it continuously, and they don't have to use
it for calendar sync. Just having established a sync session once, for any data type,
is enough.