Cha = Weekday-Related Time Change - Grasslin Talento 672 Mode D'emploi

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6.2.2 cHA = Weekday – related time change
Press the key once
Press the + 1h key as often as
necessary until cHA appears
Press the Prog key once
Set the current year:
With the m key or the h key
Confirm with the Prog key
Set the current month
and day:
With the m key – calendar month
With the h key – calendar day