Canon PIXMA MX850 Series Quick Start Manual page 71

(3) Use the { or } button to select the week when summer time starts, then press the OK
button.
(4) Use the { or } button to select the day of the week when summer time starts, then
press the OK button.
(5) Use the Numeric buttons to enter the time (in 24-hour format) when summer time starts,
then press the OK button.
Precede single digits with a zero.
The summer time start date/time is set.
7
Set the date and time that summer time ends.
(1) Use the { or } button to select End date/time, then press the OK button.
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