## Queues, slots and the calendar

Each connected account can carry a **posting schedule**: a timezone and wall-clock slot times per weekday (for example weekdays at 11:00 and 17:00 in America/Los_Angeles). Slots are anchored in local time, so daylight-saving changes never move the local meaning of a slot.

- **Add to queue** (`mode: queue`) assigns the next free slot of the chosen account. Two posts added at the same moment never share a slot.

- **Manual time always wins.** A post scheduled at an explicit instant keeps it and occupies that slot if it lands on one.

- **Slips.** If a queued post is not publishable when its slot arrives (still a draft, awaiting approval, held), it moves to the next free slot. Nothing else moves: the posts around it keep their slots, and the post is never dropped.

- **Swaps** are explicit: swap two posts' instants, move a post to the next free slot, or set a manual time — from the post page or `POST /posts/{id}/reschedule`.

- The **calendar** (`GET /calendar`) lists every day's posts and every account's slots, taken or free; the account's **queue** view shows upcoming slots with their posts.

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HTML version: https://a1lane.ai/docs/queues