Why does it go from 11am to 12pm? 

Shouldn’t it go from 11am to 12am and then reset at 1pm?

Growth Lead at @yup, an app where you can crosspost to Farcaster, Twitter, Lens and Bluesky at once and enjoy their aggregated content

It's the result of having a 12-hr clock. Ante Meridiem "before mid day" (AM) = from midnight (12:00 AM) to just before noon (11:59 AM). Post Meridiem  ("after mid day") (PM) = from noon (12:00 PM) to just before midnight (11:59 PM).

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Due to it being a 12 hr clock, 12 pm is mid day, not 1pm.