Which Guthixian cache is which?

[Xalaron]

I want to get my diviners outfit, and the wiki says only experience guthixian caches have a chance to grant the pieces. It states that every 3 hours is said experience guthixian cache.

What it doesn't say on the wiki, however, is what hours specifically. If I don't know when atleast one is, knowing they happen every 3 hours is pointless. Do they happen at 12:00, 1:00 or 2:00? If anyone knows, or if this wiki info is completely off base, please let me know.

[Gadgetphile]

You have misunderstood something. You get a chance for a piece if you get EXPERIENCE from a Guthixian cache. Guthixian caches appears every hour, and you just need to get divination experience while you're down there for a chance at the outfit. The 3 hours thing grants extra benefits for Divination and has nothing to do with this.

[Xalaron]

So I get the .5% chance for a piece of the outfit per point scored at the end. Meaning 100 points grants 50% chance for diviner piece. I dont get the exp thing. I don't seem to earn any exp at all in the cache itself, only when the cache closes or I exit manually do I recieve exp. So how do I earn exp inside the cache to be eligible for a diviner piece?

I have gotten 100 point runs reliably, just cant figure out mechanically how to farm for the diviner pieces. I will run the event every hour possible to earn the gear if each hour I can actually get a piece. Everything I see on the wiki seems to imply there is some limit to how often you can actually get a piece though, and thats what i don't understand.

[Xaphnir]

You only receive xp from the caches upon completion, based on the number of points you got. You can receive xp from them twice per day, meaning you're limited to 2 chances of obtaining a piece of the set per day, or an average 5 days to earn the entire set.

They're meant as a way to gain time-gated divination xp if you don't want to deal with the slow xp rates that the normal training method provides.

[Xalaron]

Ah, so I can run two 100 point caches in a row every day but no more then that. Thanks, now I guess its just a matter of my terrible luck.