A backward planning app that starts at the deadline.

What backward planning actually is

You start at the end. Dinner on the table at 6:30. Then you subtract, in reverse order: fifteen minutes to plate and set the table, so that starts at 6:15. Forty minutes in the oven, so it goes in at 5:35. Twenty-five minutes of prep, so the knife comes out at 5:10. Keep going until the arithmetic hits a time that has already passed — that's your answer, and usually your problem.

Project schedulers have done this for decades under the name reverse scheduling: fix the delivery date, work back through the dependencies, find the latest possible start for each one. At the scale of a single evening it's the same move, and it's the difference between “I have plenty of time” and “the oven needed to be on eleven minutes ago.”

Why forward plans slip and backward plans don't

A forward plan is a list in the order you feel like doing things. Each step begins when the last one ends, which means every overrun quietly pushes the finish line later. You don't find out until the end, when the finish line is the one thing that couldn't move.

A backward plan inverts who absorbs the slip. The deadline is fixed, so an overrun shows up the moment it happens, as a start time you have already blown past. That's uncomfortable, and it's the point: you get the bad news at 5:20 while you can still cut something, not at 6:45 when the guests are in the hallway.

The arithmetic is easy once and annoying forever

Nobody struggles to subtract twenty-five minutes from 6:30. The problem is that you have to do it for every step, in your head, while also cooking — and then do it again when the roast needs another fifteen minutes, or the meeting moves, or you decide to shower first after all.

That is the part worth handing to software. Not the planning. The recalculating.

How Ready Time does it

Set the deadline. Add the steps and how long each one takes. Ready Time subtracts backward through the list and gives every step a start time, then alerts you at each one so you're not the timekeeper.

Change anything — a longer step, an earlier deadline — and the whole plan recomputes. The Premium unlock adds Time Lock, which pins one step to a fixed clock time and arranges everything else around it, and buffers, which put breathing room between steps so a plan isn't wall-to-wall.

Read it bottom to top and it's the way you'd think it through anyway. Read it top to bottom and it's a schedule with alerts. Backward planning is just insisting on the first one before you commit to the second.

What is backward planning?

Planning that starts at the finish and works back to the present. You fix the moment something has to be done, subtract each step that has to happen first, and end up with the latest time you can start each one. The output isn't a to-do list — it's a set of start times.

How do I plan backwards from a deadline?

Write down the deadline first. List every step that has to happen before it, including the ones that aren't the main event: showering, driving, parking, finding your keys. Give each one an honest duration — measured, not remembered. Then subtract them from the deadline in reverse order. The first start time you land on is when the whole thing has to begin.

What's the difference between backward planning and reverse scheduling?

Mostly the setting. Reverse scheduling is what project managers call it when a delivery date is fixed and the plan is built back through the dependencies. Backward planning is the same arithmetic applied to a personal deadline. Both answer the same question: what is the latest I can start and still finish on time?

Is there an app that plans backwards from a deadline?

That's what Ready Time is for. You enter the deadline and the steps, and it computes a start time for each one and alerts you when they arrive. Most planners and calendars work the other way — you choose the start times yourself and they show you the result — which leaves the backward math to you.

How much buffer should I leave between steps?

Enough that a normal amount of friction doesn't eat the whole plan. The honest way to size it is to run the plan once as written and notice where it went wrong: the step you underestimated, or the gap between steps where nothing was scheduled and ten minutes vanished anyway. Buffers between steps are part of the Premium unlock if you'd rather have them built in than padded into each estimate.

Timeboxing apps come at this from the other direction — see Ready Time vs. Structured, or all app comparisons.