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Oct 25, 2025

Belgium switches back to winter time: what business travellers need to know

Belgium switches back to winter time: what business travellers need to know
At 03:00 on the night of Saturday 25 October to Sunday 26 October, Belgium set its clocks back one hour, marking the bi-annual transition from summer to winter time. Although the change is a familiar ritual dating back to 1977, it still catches out hurried passengers and logistics planners. Airlines, rail operators and bus companies operating to or through Belgium have had to re-issue timetables to avoid “phantom” departures in the lost hour and duplicate flight numbers in reservation systems. Brussels Airport reminded travellers to double-check boarding passes issued before the switch, particularly for early-morning inter-continental departures that cross multiple time zones.

For multinational companies running European shuttle services or pan-regional conference calls, the clock change temporarily alters the time difference between Belgium and non-EU jurisdictions that do not observe daylight-saving. US-based executives, for instance, will find the Brussels office one hour closer until the United States reverts to standard time on 2 November. Employers with shift workers in Belgium must also ensure payroll systems account for the 23-hour day; failure to do so could breach Belgian labour-time regulations.

The debate over scrapping seasonal clock changes continues to rumble in the EU. Despite the European Commission’s 2018 proposal to abolish the practice, member states have not reached consensus on a permanent time regime. Belgium therefore remains locked into the twice-yearly adjustment for the foreseeable future, meaning the next change back to summer time is already scheduled for 29 March 2026.

For global mobility managers the practical advice remains straightforward: (1) audit travel itineraries that cross the night of 25/26 October; (2) alert relocating employees about temporary time-zone gaps with their home offices; and (3) update any time-sensitive compliance software such as Posted Worker notifications or A1 social-security filings that rely on local timestamps.

In an interconnected world, a single lost hour can still derail a carefully planned assignment or supply-chain delivery. Staying vigilant around the seasonal transition is therefore a low-cost insurance policy for businesses operating in Belgium.
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