Enchanted Sundial

It is fishing loot, not something you build. It comes out of crates, and the odds climb steeply with crate tier, so in practice it is a Titanium Crate prize with Mythril Crates as a distant second and Pearlwood Crates as a lottery ticket. If you want one, the fastest route is a Hardmode fishing session with crate bait rather than hoping it turns up on its own.

Hit it, or send it a wire signal, and time runs forward to the next dawn. It does not teleport you there. It fast forwards, running the clock at high speed until it arrives, which is why you can watch the sun cross the sky. Other ways of speeding time up are ignored while it is running, so climbing into a bed adds nothing.

The important limitation is that tile updates keep running at normal pace. Plants do not grow faster, grass does not spread faster, and biome creep does not advance. It skips the clock, not a day of world activity, so it is useless as a farm accelerator no matter how much time it appears to burn.

Its counterpart, the Enchanted Moondial, does the same thing in the opposite direction and stops at dusk.

Nothing random will fire while it runs. Bosses do not spawn on their own, the Traveling Merchant does not show up, and a Blood Moon cannot start. You cannot use it to roll for events.

Anything already counting down does burn away, though. Rain ends sooner, fallen stars and fairies come and go, cultists tick toward spawning, ladybug luck expires, the Tax Collector piles up coins, and a Deerclops despawn timer runs out. That last one is worth remembering before you use it mid fight.

One timer covers the whole world, so a second sundial is decoration. It does not share with the moondial, so you can use both in the same stretch. The timer ticks down once per in game day at dawn, which means anything that accelerates time also accelerates the cooldown: sleeping through it cuts the real world wait to a fraction of what standing around costs. In multiplayer a day only counts if somebody is online when dawn passes.

A naturally occurring Blood Moon or Solar Eclipse resets it outright, which is neat, since dodging exactly those nights is one of the main reasons to own the thing. You can tell it is ready without counting days, since the dial and the sun on its face light up. The glow is decorative only and will not satisfy a room's lighting requirement, so it cannot replace a torch.

Resetting the Angler so you can turn in another quest today. Jumping past a mechanical boss night you got the announcement for but are not equipped to handle. Skipping an eclipse or a Blood Moon you do not want to fight through. Rolling the moon forward when an NPC only stocks something on a particular phase.

Each one stops the acceleration when it reaches its own anchor, dawn for this and dusk for the other, so firing both at once is not additive, it just hands control to whichever anchor comes second. Trigger both in the morning and you land at the following dawn. Trigger this one in the morning, then the moondial later that evening, and you land at the following dusk instead. Order and timing decide where you end up, so think about which end of the day you actually want before you spend both cooldowns.

It borrows the color scheme and the architecture of the Skyware furniture set, despite having nothing to do with floating islands.