⏱️ Time Calibration

⚠️ World Clock calculates based on your system time. Please ensure your system time is accurate
If high accuracy is needed, run a time calibration to sync with a network time server before use

🚀 Quick Start

Enter a city or country name, or a full timezone ID (e.g., America/New_York) in the search box; supports search in your language and in English
Each clock shows the city name, time, date, and UTC offset
An orange DST badge indicates daylight saving time is active
Hover to reveal the remove button, then click to remove a city
Select a city from the search results to add it (already added cities are marked "Added")
Choose display mode (digital/analog); in digital mode you can switch 24‑hour format; enable seconds/second hand only when second‑level precision is needed

📌 Common Scenarios

Remote collaboration: see teammates’ local hours and plan cross‑time‑zone meetings
Global meetings: quickly find time windows convenient for all participants
Market hours: align with exchange local open/close times (incl. DST shifts)
Support rota: plan 24/7 shifts and avoid peak conflicts
Cross‑region projects: coordinate milestones and delivery times
Overseas contacts: check friends’/family’s local time before calling
Live/Release scheduling: choose globally friendly slots
Travel planning: compare departure/arrival local times across countries

🎛️ Display & Timezone Parameters

Prefer the 24‑hour format in cross‑timezone communications to avoid AM/PM confusion
Enable seconds/second‑hand only when needed; keep off by default to save power
Choose mode: digital for alignment, analog for intuition; pick per scenario
DST awareness: when DST is active local time shifts by +1h; watch UTC offset and abbreviations

🧭 Usage Advice

Remote work: see teammates’ working hours, avoid late‑night meetings
International meetings: quickly find a time slot convenient for all
Financial markets: follow the exchange’s local time and trading calendar (e.g., New York 9:30, London 8:00, Tokyo 9:00; times shift during DST)
Cross‑time‑zone projects: coordinate progress across regions
Overseas contacts: know local time before calling

⚠️ Limitations & Compatibility

Depends on your device’s system clock; calibrate your system time to ensure accurate display
Up to 12 cities displayed at once
Showing seconds increases power consumption
For smaller cities, try searching a major city in the country

🔒 Privacy & Security

❓ FAQ

Why is the displayed time inaccurate?

Check your device’s system time settings. World Clock relies on system time; if it’s wrong, all time zones will be off

Why can’t I find certain cities?

Includes a curated list of major cities. If not found, try a major city in your country or enter a full timezone ID (e.g., America/New_York)

Why does showing seconds feel laggy?

Updating every second increases CPU usage. For daily use, keep it off and enable only when you need precise timing

Are my settings saved?

Settings and city list are saved in your browser’s local storage and restored next time. Clearing browser data will remove them