It’s Caturday in Kiritimati
The photo is Happy Cat: grey British Shorthair, open-mouth grin, Impact text that launched a whole dialect. The post title points at Kiritimati — the Line Islands get Saturday before almost anyone else.
Two layers
One layer is museum-piece lolcat. The other is Caturday as a timezone flex. If it is already Saturday on that island, the cheezburger request is technically on time.