How does Chronos automatic scheduling work?

Built without AI, on purpose

Chronos doesn't need AI to plan your week. Its scheduler is a purpose-built, rules-based engine that follows the rules you set, every time:

• Predictable plans — the same tasks, calendar and settings always give the same plan, so there are no surprise reshuffles.
• A reason for every block — on the web, every block the scheduler places carries a badge. Tap it to see why it landed there, such as your peak-energy hours or its priority, and whether it was a close call.
• Pinned tasks never move — anything you place by hand stays exactly where you put it.
• Keeps to your daily limit — it never fills a day past the workload limit you set, so a busy week doesn't become an overloaded one.
• Private — scheduling runs on Chronos's own infrastructure and never sends your calendar or tasks to an AI provider.

Why Chronos doesn't use AI to schedule →

What automatic scheduling actually does

Most calendar apps let you manually drag tasks into free slots. Chronos inverts that: you tell it what needs doing and when it's due, and it finds the time for you. The scheduler reads your existing meetings from Google Calendar and your other connected calendars, respects your availability windows, then places work blocks where they fit:

• Every free gap weighed — each open slot in your week is scored against priority, deadlines, your peak hours and your workload, not just filled first-come.
• Deadline pressure — a task gains weight as its due date nears, so near-due and overdue work rises above priority alone.
• Focus sessions — long tasks are split into focus sessions that fit around your meetings, rather than waiting for a four-hour gap that never comes.
• Early warnings — when a task can't fit before its due date, Chronos flags it as at risk so you can act early, instead of finding out on the day.
• Hard due dates — mark a due date as hard and the scheduler widens its search, outside your usual hours and then past your daily limit, before it lets the date slip.

How priorities drive the schedule

Every task in Chronos carries a priority: Urgent, High, Medium, or Low. The scheduler runs the most urgent work into the nearest available slots and defers lower-priority tasks to later in the week. When you add an event or change a task, the scheduler re-plans the affected work, and you can ask it to re-plan your whole week at any time.

• Urgent — scheduled into the next open window, same day where possible.
• High — placed before the due date with at least one buffer slot.
• Medium / Low — filled into remaining capacity, pushed to later days when capacity is tight.

Respecting your working style

The scheduler honours availability windows you define — morning focus hours, no-meeting afternoons, blocked-off days. Earliest start times let you keep tasks off the schedule until a dependency clears, and you can switch automatic scheduling off for any one-off task you would rather place yourself.

How Chronos compares on scheduling

Competing schedulers each make different trade-offs. See how Chronos stacks up:

• Chronos vs Motion — Motion reschedules automatically but locks you into a rigid daily plan. Chronos gives you a predictable schedule and the flexibility to override any block.
• Chronos vs Reclaim — Reclaim focuses on habit scheduling and meeting defence. Chronos covers the full task backlog, not just recurring habits.
• Chronos vs Sunsama — Sunsama requires a daily planning ritual. Chronos plans automatically so you can skip the ritual on busy days.

Help in plain English

Prefer to just say what you need? The Chronos Agent is an optional AI assistant you talk to by text or voice. Ask it to add a task, find free time or reschedule something and it acts on your calendar, with undo — new tasks it adds are placed by the same scheduling engine.