ChronoZero · Experimental alpha
Plan around capacity,
not just time.
ChronoZero continuously adapts your day around an estimate of your cognitive state, recent activity, sleep, energy, goals, and real commitments.
The problem
Your calendar knows your time.
Not your capacity.
Calendars and task managers organize hours. They do not account for the fact that demanding work can feel very different at 9:00 and 16:00.
and still be unrealistic.
Plan demanding work around changing capacity, not only around empty time.
The adaptive day
A running estimate.
A plan that keeps moving.
ChronoZero combines recent behavior, sleep, reported energy, calendar constraints, and feedback to project useful work and recovery windows.
The objective is sustainable structure for meaningful work, not maximum effort.
Start with the vocabulary
Power Zones describe
what a block asks of you.
Seven categories give work, overhead, recovery, distraction, and sleep one shared language. They are planning labels, not scores, diagnoses, or judgments.
Recovery belongs in the plan. Distraction can be recorded without punishment.
The mobile timeline
Power Zones sit beside
the calendar you already have.
Fixed commitments remain visible while ChronoZero places work and recovery around them. One clock keeps the current marker, session, calendar, behavior, and suggested plan coherent.
Past and future, side by side
Behavior grounds the past.
Suggestions shape the near future.
Rounded Power Zone blocks make the distinction visible: the behavior track records what you actually did; the suggested track projects a small number of useful next windows.
Reality is evidence
Focused work, recovery, overhead, or distraction can all update the next plan.
The future stays provisional
Recommendations are estimates. Start one, correct it, override it, or ignore it.
Continuity without constant hassling
A granular timeline could feel intensive.
Gaps are engineered into the system.
ChronoZero does not require constant logging. Let a gap grow; reconstruction adapts its questions to the situation and gap length, then rebuilds enough recent context to continue.
Whatever happened, the next recommendation stays only a few clicks away.
Two observation channels
Small inputs help ground
the estimate through the day.
Vitality
A quick energy slider gives the system a live subjective read that can tune the next recommendation.
Optional PVT readiness check
A short reaction task helps ChronoZero learn how your responses change over time. It does not claim to measure cognition directly.
Two simple tools
The squircle records what you did.
The circle records how you were.
Power Zone blocks describe the activity category. Vitality and PVT observations help ground the estimated state around that activity. Together they connect behavior with the conditions in which it happened.
What happened across time
How you felt or responded
Minimal input, enough context to keep adapting.
The adaptive loop
Each new signal can change
the next workable move.
Behavior and observations update the running estimate. The system projects the near future, recommends a Power Zone, explains why, then learns again from what actually happens.
Visible cause → visible change
Activities add the “what”
The Power Zone sets the kind of work.
Your activities choose the next action.
Inside the current Power Zone plan, ChronoZero ranks eligible activities using deadline-aware value, importance, difficulty fit, available contiguous time, estimated state, and prior start and completion outcomes.
Deadlines influence today’s ranking; ChronoZero does not claim to guarantee a globally optimized multi-day plan.
The combination that matters
Your goals supply direction.
Your behavior and state keep it realistic.
ChronoZero combines what matters, when it matters, what your calendar allows, what you actually did, and what your estimated capacity may support next.
One system, two surfaces
Stay close on mobile.
Step back on the web.
Mobile
Timeline, sessions, reconstruction, vitality, PVT, and recommendations in the flow of the day.
Web
The full operating view for schedule, behavior, suggested Power Zones, activities, statistics, and explanations.
Experimental alpha · iOS · Android · Web
A calendar organizes time.
ChronoZero adapts the day.
Try a plan that accounts for commitments, goals, recent behavior, and an evolving estimate of your capacity, while leaving every recommendation open to correction.
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Recommendations are estimates. You can override, correct, or ignore them. No streaks. No penalties. No wearable required.