No.
While most people will say 12pm for noon, and 12am for midnight, they neither of them in fact either am or pm, given what those mean.
12 Noon is between AM and PM, and 12 midnight is between PM and AM.
No.
While most people will say 12pm for noon, and 12am for midnight, they neither of them in fact either am or pm, given what those mean.
12 Noon is between AM and PM, and 12 midnight is between PM and AM.
PM means post meridian I.e after the sun is at its zenith so 12pm is sort of correct but one should say noon and midnight.
I suspect that Tesco is open from 10am to midnight.
Maybe they should just say 11.59 PM!