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Vorarlberg, Austria

Vorarlberg follows Austria’s CET and CEST schedule. Its cities share one civil time, but the state’s western position and Alpine terrain mean that a useful sunrise reading should be tied to a particular place and date.

Dornbirn, Austria

Friday, 4 September 2026

UTC+2 · Europe/Vienna

Time and sun data for Dornbirn — the largest city of Vorarlberg

The sun in Dornbirn

Sunrise 06:45 Solar noon 13:21 Sunset 19:58 Daylight 13 h 14 min Night 10 h 46 min Civil twilight 06:13 – 20:30

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Current time in Vorarlberg, Austria

Vorarlberg observes Central European Time, UTC+1, as standard time. It moves to Central European Summer Time, UTC+2, during daylight saving time. The change is made together with the rest of Austria. Dornbirn, Feldkirch, Bregenz, Bludenz, and all smaller municipalities display the same local hour. Crossing an internal district line never requires a watch adjustment. Travel across an international border may still keep the same clock if the neighbouring place follows compatible rules, but that should be checked for the date concerned.

For digital calendars, select the relevant European location instead of storing a fixed offset. That allows future events to follow official seasonal changes correctly. Vorarlberg sits at Austria’s far west, yet nobody there is waiting for a separate western-Austrian time zone.

Cities between Lake Constance and the Alps

Vorarlberg is Austria’s westernmost federal state. Bregenz is the state capital, while Dornbirn is its largest urban centre. The region combines the shore of Lake Constance, the Rhine valley, mountain towns, and high Alpine valleys.

Key urban references include: Dornbirn, the largest city in the state; Feldkirch, a historic city near international borders; Bregenz, the capital on Lake Constance; Lustenau, a large Rhine-valley municipality;

Bludenz, a gateway to several mountain valleys. These places are close enough to use one official clock but distinct enough to deserve their own daylight calculation. A broad regional label cannot account for every coordinate, ridge, or view across the lake.

What a Vorarlberg sunrise means

Astronomical sunrise depends on latitude, longitude, and date. It arrives earlier in the long-day season and later in the short-day season. Vorarlberg’s western position within Austria also places its solar timetable slightly later than locations much farther east, though civil time remains the same.

Actual visibility depends strongly on the horizon. The open lake can provide a different eastern outlook from a deep mountain valley. A published sunrise does not guarantee that direct rays reach the ground at that instant where hills or buildings intervene.

For practical use: Choose Bregenz, Dornbirn, or the nearest locality. Supply the correct date. Verify the current CET or CEST label. Review terrain if the first direct sunlight matters. The official clock is enough for trains, meetings, and opening hours. Location-specific solar data is better for hikes, landscape photographs, lake outings, and any activity planned around natural light.

Questions and answers

What UTC offset does Vorarlberg use?
It uses UTC+1 in standard time and UTC+2 during daylight saving time.
Is Bregenz the largest city in Vorarlberg?
Bregenz is the state capital; Dornbirn is the state’s largest city.
Why might a valley see the sun after official sunrise?
The astronomical event is calculated for a standard horizon, while mountains can block direct sunlight locally.
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