SectionFood & Drink
Last reviewed28 July 2026
Reading time6 minutes

What this planner works out

Enter when you want to sit down and what you are cooking, and this works backwards to a running order: what goes on at what time, when each dish is ready, and where the resting periods fall.

Timing a roast dinner is not hard arithmetic, but doing four separate sums in your head while the kitchen fills up is where it goes wrong. Seeing it as one list, in order, is the useful part.

It does not try to solve oven capacity for you, because that depends on your oven. What it does is make the clashes visible early enough to plan around them.

Enter your details

Enter your dishes and select Build the schedule.

Before you start

The oven is the bottleneck

Most timing disasters are not arithmetic errors but capacity errors. A joint, potatoes and a tray of vegetables rarely fit at once, and they often want different temperatures. Resting is what saves you: while the meat rests under foil for twenty or thirty minutes, the oven is empty and can be turned up for the potatoes.

How this planner works

Start time = serving time − (cooking time + resting time)

Each dish is scheduled independently from the serving time backwards, then the list is sorted so the earliest start appears first. That gives you a running order rather than a set of separate sums.

It deliberately does not try to solve oven capacity for you, because that depends on your oven, your shelves and your tins. What it does is make the clashes visible, which is usually enough to plan around them.

Worked example: lunch at one o'clock

Reading it as a running order rather than four separate calculations is the point. The 11:00 start is the one that matters, and everything else fits around the twenty-minute rest.

Keeping food hot safely

Common mistakes

Frequently asked questions

How do I get everything ready at the same time?

Work backwards from the serving time for each dish separately, then read the results as a running order. The dish with the earliest start sets your schedule. Then check the clashes: what needs the oven at the same time, at what temperature, and what can wait. The resting period for a joint is usually the window that makes everything else possible.

Does resting time count as cooking time?

It counts towards the total, but the oven is free during it. That is why the planner asks for the two separately: a joint needing 100 minutes of cooking plus 20 minutes of resting must go in two hours before serving, but the oven becomes available 20 minutes before you sit down — which is exactly when roast potatoes want a blast of heat.

What if my oven cannot fit everything?

Stagger it around the resting period, cook what you can in advance and reheat, or move dishes to the hob or a slow cooker. Vegetables in particular do not need the oven. The planner shows the clashes rather than solving them, because the answer depends on your oven and your tins.

How long can I keep food hot before serving?

At 63°C or above, food can be held for service. Below that temperature the FSA allows up to two hours, after which it should be cooled quickly or discarded. A low oven at around 70 to 80°C with the dish covered is the practical way to hold something that finished early.

Should I add preheating time?

Yes, and it is regularly underestimated. Most domestic ovens take fifteen minutes or more to reach temperature, and the indicator light often comes on before the oven is genuinely stable. Add it to your earliest start time rather than to individual dishes.

Is what I enter stored?

No. Times and dish names are processed in your browser and never transmitted or retained.

Related tools

References

These organisations publish the guidance and figures behind this page.

Sources are checked at publication and can change — how I choose and check references.

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