Forty to sixty minutes separate the office confirming from her knock at any central address; that arrival window is long enough to ready a room without hurry.
Once the office confirms a booking, a therapist reaches any central Amsterdam address within forty to sixty minutes. The span is uniform. A room beside the Vondelpark, an apartment in De Pijp and a hotel near the station all sit inside the same window, and no district is promised a shorter one. Schiphol and the airport hotels are different: those visits are timed by arrangement, with the hour agreed in the thread.
She is crossing a city of bridges, one-way streets and trams, and the office would rather give an honest span than a precise time it cannot hold. The window is counted from confirmation, not from the first message, so the clock begins once the booking is accepted and, where one applies, the deposit has settled.
For a tantra session the forty minutes are not dead time. They are the beginning of the slowing down. A few unhurried things help, and none of them is required: a shower taken without rushing, the heating turned up a little, lamps chosen over the overhead light, a phone set aside, a glass of water poured. A heavy meal in the last hour is better avoided. The preparation guide goes through this in more detail.
If you are in a hotel, it is also the moment to check the practical things: that the thread shows the right room number, and that she will not be waiting at a lift that needs a card. Small matters settled now leave nothing to interrupt the stillness later.
For an evening decided at short notice, the tonight guide describes how a same-day booking runs, and the outcall entry explains why every booking involves a journey at all.