Time Zone error on BES 5.0.2 on Domino

A week ago, while working with a customer, this error was appearing on a recently upgraded Domino/BES 502 server.

28/07/2010 05:43:47   Wrong DST switch mode=2. Currently only
mode 0 and 1 are supported
28/07/2010 05:43:47   Wrong DST switch mode=2. Currently only
mode 0 and 1 are supported
28/07/2010 05:43:47   Unable to construct Notes string for TZ
id=#####

Blackberry (as usual) fast-tracked the error and published a knowledge base document that day.

In BlackBerry Enterprise Server 5.0 SP2, additional logging captures the status of unsupported time zones. In this instance, DST Switch mode 2 applies to Iran and Iraq time zones that are present on the BlackBerry smartphone, but have not yet been designed for Windows Server®, Lotus Domino Server, or the BlackBerry Enterprise Server.

The error is intended to be informational and does not indicate that there are any issues on the BlackBerry Enterprise Server.

Link here