BenQ SL6501 User Manual page 79

The Daylight saving time definition and behavior:
The current implementation of daylight saving is a reminder tool
for the customer which doesn't know how to adjust the clock for
daylight saving on and off. It does not adjust the real time clock
automatically. Problem is that there are no stable rules per
region, or country when to adjust the clock. To solve this the
user must be able to set the daylight saving start en stop date.
When daylight saving correction is on (user selectable) then the
real time clock should be adjusted at the moment in time set in
the daylight saving on and off date. At daylight start date the clock
should be put forward 1 hour at 2 o'clock. At daylight stop date
the clock should be put back 1 hour at 2 o'clock.
The existing daylight on/off menu item should be replaced with
the following menu structure:
• Menu item <Daylight saving setup> opens submenu containing
the following items:
• Menu item <Daylight-saving start date> Selection item <1st, 2nd,
3rd, 4th, last> Sunday of selection item <1-12 month>
• Menu item <Daylight-saving stop date> Selection item <1st, 2nd,
3rd, 4th, last> Sunday of selection item <1-12 month>
• optional
• Menu item <Correction time> Selection item <0.5, 1.0, 1.5, 2.0>
hour
• Menu item <Daylight saving correction> Selection item <on,
off>
when "daylight saving" is "on" the real time clock would have
been adjusted automatically for winter and summer time when
passing the critical moment in time (eg march 29, 2009, 02.00
o'clock: time will be set 1 hour later or October 25, 2009, 02.00
o'clock: time will be set 1 hour earlier)
OSD Menu 75