I doubt that any PDP-8 family OS checks for licensing of any sort. Back in those days, DEC used the format DD-MMM-YY for dates, so try something like:
04-OCT-78 JRJ On 10/4/2015 1:17 PM, Michael Thompson wrote: > I am fiddling with diskettes on my PDP-8/e. I booted COS-310 V8 and it > asked for a date. I tried lots of date combinations, and none were accepted. > > Is this because I don't have an LTC installed? > > COS MONITOR V 8.00 > DATE? > . > ERROR IN COMMAND > .DA 10/04/74 > BAD DATE > > COS MONITOR V 8.00 > DATE? > .DA 1/25/72 > BAD DATE > >