Let's start using the familiar phrase "24x7" correctly. You usually hear it as "24x7x365."
The 24 refers to 24 hours in a day. No problem.
The 7 refers to the days in a week. No problem.
There are 365 days in a year. Huh? We've already gone from days to weeks, now we're back to days? That's stupid. It's also very common.
Logically, it should go from days to weeks to years - 24x7x52. It's even more logical and simpler to say 24x365.
Of course, it's even simpler to skip the cliche and just say "All the time," but people love to speak in gibberish (including me). So let's just think it through.
If you need to emphasive something that's always there, just say "24 hours."
If you want to emphasize a week, it's "24x7."
If you want to point out something that is present for an annual period, it's "24x7x52."
Let's take it to a comic extreme. Why stop at a year? Why start with an hour? 60x60x24x7x52x100x10. That's seconds, minutes, hours, days, weeks, years, centuries in a millenium.
Unless you're talking about dogs. A dog-year could be described as 24x7x365.
I'm not a dog person.