How often do Planet RNG events change?
On a visible countdown measured in tens of minutes — we have read 58:00, 55:30 and 37:40 remaining on the same Meteor Shower → ORBITAL SYSTEMS rotation. It is not a weekly schedule.
Live systems
One event runs at a time on a visible countdown; each modifies the core loop. We have filmed Meteor Shower in detail and caught SOLAR SATURDAYS' modifier line live.
Updated

The bottom of the screen carries two clock readings: the current event with its modifiers, and a 'NEXT EVENT' countdown pointing at what replaces it. We read Meteor Shower serving as the current event with ORBITAL SYSTEMS queued at countdowns of 58:00, 37:40, 55:30 and 0:00 across different sessions — so the rotation runs on a timer measured in tens of minutes, not a weekly schedule.
Meteor Shower's full modifier line, read identically in multiple sessions: '2x Radioactive mutations, +50% Luck'. Both halves matter — the luck boost feeds every roll, and the mutation multiplier makes it the best window to farm for mutation unlocks on new weapons.

A 7 September community stream carried a second event on the same strip: '✨ SOLAR SATURDAYS — 5X LUCK 5X CREDITS', with its own countdown counting down by the minute ('8m left' at one read, '7m left' moments later — the same minutes-scale timer the rest of the rotation uses). It is the broadest multiplier pair we have read on an event: five times luck for the roll feed and five times credits for everything destroyed while it runs.
The capture also shows how event luck reaches the panel: beneath the roll buttons the readout said 'LUCK x5 BOOSTED' for the whole window — the base luck slot, boosted live by the event. When this name shows up on a weekend strip, it is a good reason to extend the session.
Every countdown we captured pointed at ORBITAL SYSTEMS. We have not yet filmed it live, so its modifiers are unread and the page stays honest about that: expect this section to grow the first time a session captures the rotation changing over.
The countdown numbers themselves are useful: a fresh event window appears to run roughly an hour, and the timer survives across sessions (we watched it tick from 58:00 down through 37:40 and 55:30 in different captures). If an event modifier is central to your plan — a luck push for a big rolling session — start the session near the top of the window rather than racing the final minutes.
The strip 'Thanks for joining! +3 Luck active' appears at the top of the screen and is separate from the event system: it is the group-membership bonus applying, alongside the '+2 Luck' variant seen on other saves. Two different saves showed +2 and +3, so the value appears to scale with something (group join and likes are the two documented sources) — both are free, permanent, and stack with whatever event is running.
Practical notes from the observed windows: bank Money potions for the destruction phase of any session, hold Luck potions until a Meteor Shower window so the multipliers compound, and treat the last minutes before a rotation change as the cheapest time to cash out a running session — the next event's modifiers are unknown until it lands.
FAQ
On a visible countdown measured in tens of minutes — we have read 58:00, 55:30 and 37:40 remaining on the same Meteor Shower → ORBITAL SYSTEMS rotation. It is not a weekly schedule.
Its printed line is '2x Radioactive mutations, +50% Luck' — a luck boost for all rolls plus doubled mutation outcomes of the Radioactive family while it runs.
Every countdown we captured pointed at ORBITAL SYSTEMS. Its contents had not been filmed at the time of writing, so the page lists the name and nothing more until a live capture is read.
Its printed line reads '5X LUCK 5X CREDITS' with its own countdown — five times luck on the roll feed and five times credits while it is the current event. We caught it live in a 7 September stream with the scan panel showing 'LUCK x5 BOOSTED' underneath.