> From: Peter Epstein
>
> That's right. Specifically, Palm OS 4.0 includes a Date & Time
> panel in which you can turn daylight saving time on or off. This
> automatically adjusts the system clock by an hour, as expected.
> There is no reminder facility or automatic application of
> daylight saving time. The user is expected to create two
> repeating events if they'd like to be reminded of the need to
> turn DST on or off. Since so many other clocks/watches/etc need
> to be manually adjusted, you'd still want to be told about DST,
> even if it were automatically turned on or off. The rules for DST
> vary from place to place, and are much more complex than most
> people think. In the US, for example, most states observe the
> federally defined DST rules, but some states choose not to
> participate, and some counties choose to go their own way,
> differing on DST policy from the state they are part of. Palm OS
> currently makes no attempt to define DST rules according to the
> locale you specify.
>
DST actually can't be determined programmatically. For example, Israel has
no set time to start daylight savings. Their law simply requires 150 days
per year of daylight savings and they decide every year when it will start
and when it will end.
FYI, you can learn more about DST at http://webexhibits.org/daylightsaving/
.
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