"We're on a planet-based cycle, mostly. Rotation of the planet, rotation of the solar system, position of the moon." Hiro nods thoughtfully, propping his chin in his hand as he slowly meanders his way up Subzero's wrist (again). "Super nature-based. Kinda funny we've stuck with it for this long."

Hiro frowns a little, thoughtfully, trying to imagine if instead of this weird Cybertron place he'd been placed in a San Fransokyo where everything is juuuuust slightly...off. Then he gets distracted by the idea of all the Cybertronians trying to ride the trolley and just chuckles to himself.