CASIO HQ-31, strange calculator/calendar

[Dan C]

(04-27-2022 05:41 PM)xerxes Wrote:  

(04-26-2022 05:29 PM)Dan C Wrote:  Now when i have set the date to 22-04-26, the column marked in the calendar is 2,9,16,23,30.
And these must be the days in the month?

The marked column should show the sundays, but I assume that you have set the date to April 1922. Have you tried to set the date as "20220427"?

Yes, i have tried to set the date as 20220427, but the machine does not accept this format.
It only accept 220427, and then "adj/set" button.