Fullscreen clock · Unix · Cron · Timezones

UTC · UTC
UTC · Local time

--:--:--

—

Offset
estimating
RTT
offline
More display options

Location

Timezone board

Current city

UTC

Timezone

UTC

UTC now

--:--:-- UTC

City clocks

Beijing

→

--:--

Asia/Shanghai

Shanghai

→

--:--

Asia/Shanghai

New York

→

--:--

America/New_York

London

→

--:--

Europe/London

Tokyo

→

--:--

Asia/Tokyo

Singapore

→

--:--

Asia/Singapore

San Francisco

→

--:--

America/Los_Angeles

Dubai

→

--:--

Asia/Dubai

Sydney

→

--:--

Australia/Sydney

Paris

→

--:--

Europe/Paris

Shortcuts: C copy seconds · H 12/24 · M milliseconds · L calm mode · F fullscreen

City time facts

Prague · Czechia

Timezone

Europe/Prague

UTC offset

GMT+2

Local date

Saturday, May 9, 2026

Work window

09:00–18:00 local

Unix now

1778291651

DST

DST

City actions

Use this city in your time tools.

Add to timezone board

↗

Open a board centered on this city.

Compare with another city

↗

Check the time difference and overlap.

Plan a meeting

↗

Start a meeting planner with this city.

Related city clocks

Nearby teams and useful comparisons

London→

Europe/London · United Kingdom

Paris→

Europe/Paris · France

Berlin→

Europe/Berlin · Germany

Amsterdam→

Europe/Amsterdam · Netherlands

Madrid→

Europe/Madrid · Spain

Rome→

Europe/Rome · Italy

Time tool shortcuts

Convert, schedule, compare, and share time without leaving the clock.

Convert→

Unix timestamp

Seconds, milliseconds, ISO 8601.

Preview→

Cron schedules

Next run times with timezone context.

Plan→

Timezone board

City clocks and work-hour overlap.

Meet→

Meeting time

One time across multiple cities.

Focus→

Countdown

Shareable fullscreen timer.

City time links

Live city clocks, time differences, and shareable boards.

City clocks

0/10 working
Beijing→

--:--

·

—

Open clock

Shanghai→

--:--

·

—

Open clock

New York→

--:--

·

—

Open clock

London→

--:--

·

—

Open clock

Tokyo→

--:--

·

—

Open clock

Singapore→

--:--

·

—

Open clock

San Francisco→

--:--

·

—

Open clock

Dubai→

--:--

·

—

Open clock

Sydney→

--:--

·

—

Open clock

Paris→

--:--

·

—

Open clock

Time comparisons

Beijing ↔ New York--:-- / --:-- · —CompareBeijing ↔ London--:-- / --:-- · —CompareBeijing ↔ Tokyo--:-- / --:-- · —CompareShanghai ↔ San Francisco--:-- / --:-- · —CompareShanghai ↔ London--:-- / --:-- · —CompareNew York ↔ London--:-- / --:-- · —Compare

Quick boards

Global5 city clocks →Asia6 city clocks →US + Europe5 city clocks →CN + US + UK3 city clocks →

Reference guides

Unix timestamp guide

→

Seconds vs milliseconds, UTC storage, ISO strings, and common API mistakes.

Cron expression guide

→

Field order, Quartz differences, timezone rules, and production scheduling pitfalls.