What timezone does Vienna use?

Vienna uses the IANA timezone Europe/Vienna. In winter it observes Central European Time (CET, UTC+1) and in summer it switches to Central European Summer Time (CEST, UTC+2).

When does Vienna change its clocks?

Vienna follows EU daylight saving rules: clocks spring forward one hour on the last Sunday of March and fall back on the last Sunday of October.

Is the time shown accurate?

The time is derived from your device's system clock. If your device clock is accurate (synced via NTP), the displayed Vienna time will be correct to the second.

Does this tool require an internet connection?

After the page loads, the clock runs entirely in your browser using the built-in Intl API. No further network requests are made.

What is the difference between CET and CEST?

CET (Central European Time) is UTC+1 and is in effect during winter. CEST (Central European Summer Time) is UTC+2 and is in effect during summer (daylight saving).

Current Time in Vienna

Name: Current Time in Vienna
Availability: InStock
Author: Nham Vu

See the exact current time in Vienna, Austria, with live second-by-second updates and timezone details.

Vienna, Austria

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Live — updates every second

Timezone Details

IANA Timezone: Europe/Vienna
Current Offset: --
Abbreviation: --
Daylight Saving: --

Your Difference

Your Local Time: --:--:--
Offset from Vienna: --

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Summary

See the exact current time in Vienna, Austria, with live second-by-second updates and timezone details.

How it works

Your browser reads the current UTC time from your device clock.
The Intl.DateTimeFormat API converts UTC to the Europe/Vienna timezone.
The display updates every second using setInterval.
UTC offset and daylight saving status are derived automatically from the same API.
No server calls are made — everything runs entirely client-side.

Use cases

Check whether Vienna business hours overlap with your local time.
Schedule international calls or meetings with colleagues in Vienna.
Verify what time a Vienna-based live event is broadcasting right now.
Quickly confirm the UTC offset in effect (CET vs CEST) for log correlation.
Support travel planning by seeing the local Vienna time at a glance.
Help remote workers sync their schedules with the Vienna office.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu