I agree that a more "international" display of dates should be used on eHAM and have requested this of the programmers. Unfortunately, the underlying code for this site only generates MMDDYYYY.
As far as US hams using terms like "20 meters" (and not 22 yards, etc.), I don't really see much irony. Like it or not, nearly everything in the US is measured in pounds, feet, etc. This is taught to people at a young age and is a part of everyday life. So to be comfortable visualizing, specifying and describing things with those units is understandable. (Except for people in a few professions, e.g., engineers, scientists, medical personnel, most folks in the US are hardly exposed to metric units at all.)
If at some point (later in life, no doubt) one becomes a ham, one will learn about "the bands" from Elmers. These Elmers refer to them as "20 meters", etc., and so this becomes natural. That doesn't necessarily mean that a boom length needs to be described in meters. For a US ham, visualizing what that boom looks like is still better done in the "feet" world. Certainly, he is more likely to own a tape measure with feet than one with meters.
73 Mike N2MG
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