The unhurried evening: why nobody at the top tier looks at a watch

At the top of this profession, nobody looks at the time. Not the companion, not the guest, and not the waiter, who has been told the table is yours for the evening. It is the plainest sign that an evening is going well, and it is nearly always the result of a decision taken before anyone arrived: book longer than you think you need.

A glance at a watch is a small thing. It says, without a word, that part of the evening is being spent on counting it. The unhurried evening is designed so that nobody has to count.

An hour sounds generous until you account for it. Your companion arrives, and the first minutes go to hello, to coats and to the ordering of a drink. The final minutes go to goodbye. What lies between is real and pleasant, but it has an edge, and both of you can feel it approaching.

That is why the ladder has the shape it has. A single hour costs £600. Two cost £1,100, less than twice the single hour. Three are £1,500, and four, for dinner, are £1,800, far below four single hours. Ten hours overnight are £3,000. The slope is deliberate. It exists so that you choose the evening you want, not the one you can count your way through. If the length you name looks too short for the plan you describe, Octavia will say so, once, and leave the choice with you. It is the only advice about length she volunteers.

A good evening is not played at a single speed. Like a piece of music, it moves through at least three.

Each tempo needs its own time. Squeeze the opening and the middle never quite settles. Squeeze the close and the evening ends on a clock rather than a feeling, which is the one ending worth avoiding. Three hours is usually the least an evening with all three movements requires. Four is kinder, and it is the length most guests at this tier choose once they have tried both.

The same logic runs the other way. A single drink at Dukes before a dinner you must attend alone is a complete evening in miniature, and ninety minutes, at £900, lets it breathe. The mistake is never the short booking. It is the short booking asked to hold a long evening.

One of the surest signs of an unhurried evening is a comfortable pause. Two people who are not watching the clock can let a silence sit for a moment, over a glass or at a window, without either rushing to fill it. It is in those pauses that an appointment turns into an evening.

Your companion is good at this. She will not fill every gap with talk, and she will not mind in the least if you do not either. She reads a quiet moment as well as she reads a menu, and knows whether it is contentment or tiredness, and what each one asks of her.

The quarter was built for a slow evening. Green Park at dusk, crossed on the diagonal from the Ritz towards the palace. Burlington Arcade, where nobody has ever been seen to run. The lake in St James's Park, with its pelicans and, from the bridge, the view towards Whitehall. A corner table at Wiltons, where the waiters have perfected the art of not appearing. Dukes, where the martini arrives on a trolley, is stirred at your elbow and takes exactly as long as it takes.

None of these places keeps a schedule. All of them reward the guest who arrives with time in hand.

The season sets a tempo of its own. A June evening in the quarter stays light until after nine, and the walk after dinner happens in daylight. In December the lamps are lit before the shops close, and the same evening turns indoors, towards a fire and a longer table. Book for the season you are in.

Sometimes an evening wants more time than was booked. That is a compliment, and it is easily met. Mention it to your companion, and the additional time is confirmed with Octavia in writing, there and then, provided her diary allows. It follows the ladder, and nothing awkward passes between you at the table. The one thing that cannot stretch is a diary already promised elsewhere later that night, which is a further argument for booking generously in the first place.

If you already know you are a host whose dinners run long, book the luxury dinner rather than three hours, or choose the overnight engagement and put the clock away altogether.

Danielle speaks softly, carries a small anthology and has a few lines of verse ready for a pause that deserves them; she likes a film before dinner and three hours to hold both. Liana prefers early evenings at a slower pace, and will spend twenty minutes in Hatchards before she spends two hours over supper. Violetta, among our companions in their thirties, has a slow smile and a dry wit she keeps for later, which is exactly why later should be allowed to arrive. Each length carries its figure on the rates page, and a note through booking reaches Octavia at any hour.