This will be a tough one to fix. There must be millions upon millions of embedded systems out there with 16-bit epoch burned in.
They’ll all be much tougher to find than “YEAR PIC(99)” in COBOL was.
Y2K wasn’t a problem because thousands upon thousands of programmers worked on it well in advance (including myself) we had source code and plenty of static analysis tools, often homegrown.
The 2038 bugs are already out there…in the wild…their source code nothing but a distant dream.
For all fallen, from any conflict, from any side.
They gave their lives.