Just Spell the Month (parkscomputing.com)

Nothing stops one from using ISO 8601 dates today - I highly recommend this to everyone.

If I have to put a date in the document, it's always in the 20xx-05-10 format. No one has been complaining that they could not understand it yet

(and I've just checked in https://en.wikipedia.org/wiki/List_of_date_formats_by_countr... - only one region used yyyy-d-mm format, but even then it is not used "causally". Which means that format as close to unambiguous as one can get.)

Just use NATO Standardization Agreement 1059. The date in question is written as 10MAY25 using this NATO standard. This of course is assuming human-to-human communication. For machine-to-machine communication then you would use RFC 3339 which is a profile of ISO 8601.