Time difference between London and Katwijk aan Zee

Katwijk aan Zee is 1 hours ahead of London.

Europe/London Europe/Amsterdam same day

Local time in both cities

London · United Kingdom
11:08
Monday, 21 September 2026
Europe/London · UTC+01:00
Katwijk aan Zee · Netherlands
12:08
Monday, 21 September 2026
Europe/Amsterdam · UTC+02:00

Katwijk aan Zee is 1 hours ahead of London.

same day

Time zones

LondonEurope/London · UTC+01:00
Katwijk aan ZeeEurope/Amsterdam · UTC+02:00

London is currently on daylight saving time (UTC+01:00). Next change: 2026-10-25 01:00.

Katwijk aan Zee is currently on daylight saving time (UTC+02:00). Next change: 2026-10-25 02:00.

Hour-by-hour conversion

Calculated for 2026-09-21 local time in London. The two places start and end daylight saving on different dates, so another day can give a different result.

London (source) Katwijk aan Zee (target)
00:00 01:00
01:00 02:00
02:00 03:00
03:00 04:00
04:00 05:00
05:00 06:00
06:00 07:00
07:00 08:00
08:00 09:00
09:00 10:00
10:00 11:00
11:00 12:00
12:00 13:00
13:00 14:00
14:00 15:00
15:00 16:00
16:00 17:00
17:00 18:00
18:00 19:00
19:00 20:00
20:00 21:00
21:00 22:00
22:00 23:00
23:00 00:00 next day

FAQ

How many hours apart are London and Katwijk aan Zee right now?
The answer at the top of the page is calculated for the current moment and states which side is ahead. The gap changes during the year, because the two places usually start and end daylight saving on different dates.
Is this difference the same all year?
Not necessarily. London uses Europe/London and Katwijk aan Zee uses Europe/Amsterdam; if either observes daylight saving, the gap shifts during the year. Use “Convert a specific date and time” below to calculate it for a given day.
How do I read the conversion table?
The left column lists each whole hour in London; the right column is the local time in Katwijk aan Zee at that same instant, with date rollovers marked. On the day clocks jump forward, some hours do not exist locally — the table says so instead of showing a plausible but wrong value.

Both cities