Journal · 2026-07-25
Amsterdam Time and the Clocks Changing
Twice a year Amsterdam moves its clocks by an hour, often on another weekend than at home, and a booking made across that change needs a second look.
Anyone booking an evening in Amsterdam from another continent already knows to write the hour in Amsterdam time. Fewer think about the weeks when the gap between the two clocks changes. It happens twice a year, and because different countries move their clocks on different dates, there are short stretches in spring and autumn when the usual difference is wrong by an hour.
When Amsterdam changes
The Netherlands follows the European pattern. Clocks go forward by an hour on the last Sunday of March and back by an hour on the last Sunday of October. The change happens in the early hours of Sunday morning, which is mostly harmless for evening bookings but has one odd consequence on the October night: the hour between two and three happens twice. A booking that starts in that hour, rare as that is, should be written with care.
When home changes
Many countries outside Europe move their clocks on different dates, some weeks earlier in spring and a week later in autumn, and many do not change them at all. A traveller who works out the difference in January and uses it in late March may be an hour out without knowing it. The same is true of someone whose country keeps one time all year: the gap to Amsterdam simply changes by an hour when Amsterdam changes, and nothing at home signals it.
For the greater part of the year none of this matters. It matters only for a booking that falls in the few weeks around the European change, or for one made on one side of the change and falling on the other.
The easy way to avoid it
Write the hour in Amsterdam time, say that it is Amsterdam time, and do not convert it. The house works in Amsterdam time. She works in Amsterdam time. The confirmation will state the hour in Amsterdam time. If you need to know what that is on your own clock, look it up for the actual date of the booking, not for today. A world clock set to Amsterdam on your phone does this automatically and is worth adding before the trip anyway.
Where the clock change reaches the rules
The twenty-four hour line in the booking terms is counted back from the booked hour, in Amsterdam time. On a weekend when the clocks change, the stretch between the line and the booking is still twenty-four hours of real time, but it may no longer land at the same hour on the clock that you expected. A guest who plans to decide by the line should work it out in Amsterdam time, on the actual dates, and leave a margin rather than cutting it fine.
The fourteen-day window for a free move is measured in dates rather than hours, so the clock change does not affect it.
Jet lag and the clock change together
A traveller who arrives in Amsterdam on the weekend the clocks move has two adjustments at once: the ordinary jet lag of the flight, and an extra hour shifted by the calendar. It is not a large effect, but it can make an eight o'clock booking feel like seven or nine. Guests who arrive that weekend tend to be glad of a booking on the second or third evening rather than the first, for the same reasons set out in the guide on choosing the evening.
Checking the confirmation
When the confirmation arrives, it names the date and the Amsterdam hour. If the booking falls near the end of March or the end of October, read the hour against your own itinerary for that exact date. Flight times on an itinerary are printed in the local time of each airport, so an arrival in Amsterdam is already written in Amsterdam time, and comparing the two is simple. If the gap between landing and the booking is what you intended, nothing else needs checking.
If you find that the hour is an hour off from what you meant, say so in the thread. A correction to the hour on the same evening, weeks ahead, is a change of hour and not a move of date, and her diary decides whether it is possible.
One clock, in the end
The reason for all this care is simply that a booking has one clock, and it is the one on the wall in Amsterdam. Everything else is a conversion, and conversions are where hours slip. Write in the clock she works to, and the rest takes care of itself. The note on writing dates covers the same problem for the day of the month rather than the hour.