This applies to the Panasonic Microwave as illustrated below:
Note the two areas of the control panel outlined in RED.
First Press Clock. You should see the display change so that the text "SET CLOCK" appears, scrolling across sideways..
Now Press the button marked 1h. Repeatedly pressing this will advance the hours displayed on the clock. If you go too far carry on and the display will cycle back to 0 after 24 Note that the Panasonic microwave uses the 24 hour clock.
Having set the hour correct, now Press the 10min button. This works similarly to the hour but in 6 steps rather than 24.
With the final digit of the minutes to adjust Press the 1min button. Potentially you will need to do this 9 times. Slow down when you get to the wanted minute.
If you don't have the instruction manual, I hope the above information is of use to you. Any comment, please email me at firstname.lastname@example.org
Page started 12 November 2018, amended 1 Apr 2019, 10 April 2020.