The upcoming Daylight Savings Time switch is going to cause some unhappy Blackberry users. I’ve not experienced this before, as that the transition was seamless previously, however; this upcoming DST is not going to go as smoothly for Blackberry users.
There is a patch to update the OS with the DST information so that your transition will be a smooth one, but it must be done in IE.
More details here (via BBCool)
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For a large-scale deployment of the DST patch there’s the Mobile Service Manager (MSM) of GPXS. See MSM or DST patching