Unless you're expecting to communicate with someone with heavy brain damage who cannot retain information for 0.2 seconds, I guess?

I mean, that's not an argument for a better system, though; if you're saying, "Yeah; you won't be able to contextualize this info. yet until the next bit of info. in 0.2 seconds," a person can certainly do that but it's still working-around the inefficiency by retaining the day – which means nothing in any context which requires knowing the month – until you find out which month the day in question is in 0.2 seconds later.