She doesn't like that the hour field goes past 12 on all my clocks or my use of European date format with the day ahead of the month and my frequent use of standardised date format really irks her with the year before the day before the month.
I like the 24-hour clock too; it is the lack of a standardised date here in Canada that drives me crazy! Each government department seems to have their own way of doing things. I had to fill out a pile of forms a few weeks ago and they used two different systems within the same department! So now I cross out what ever they have and use the European way.
Now the lack of a standardised universal measurement system drives me absolutely mad!!!!! We use everything from metric, soft metric, imperial, American standard and measurements according to sporting goods like balls and football fields, but I am not sure if they use an American football field or the Canadian one!!!!!!!!!!!!!!