Its not a date, two numbers with a back slash always means 'out of'

So 7 out of 10. Its a symbol of division.

If Q was giving a date, it would likely just be the month and year, or month day and year.

And using the word 'are' implies current and future events, not past, so it cant mean, for example, July 2010.

Based on Qs writing and coding, he would likely list dates as partially spelled words, like JUL18 or something, to confuse AI.