World Clock
Free online world clock. No sign-up, no installation. Runs entirely in your browser.
Current Time in Major Cities
What is a World Clock?
A world clock displays the current time across multiple cities and time zones simultaneously. This tool allows you to instantly see what time it is in New York, London, Tokyo, Sydney, and dozens of other major cities around the globe. Perfect for scheduling international calls, coordinating with remote teams, or simply staying aware of global time differences.
How to Use the World Clock
View Time: The tool displays 12 major cities by default with their current time, date, and UTC offset updated every second.
Identify Your Timezone: Your local city is highlighted so you can easily compare your time with others.
Add More Cities: Click the “+ Add City” button to search for and add additional cities to your clock. Simply type a city name and select from the results.
Remove Cities: Click the “×” button on any city card to remove it from the display.
Use Cases for a World Clock
Business & Scheduling: Coordinate meetings and calls across time zones. Know exactly when your international colleagues are awake and available.
Travel Planning: Figure out the local time at your destination before booking flights and accommodations.
Global Teams: Keep track of multiple office locations and their local times to avoid scheduling conflicts.
Learning & Reference: Understand time zones and UTC offsets with a visual, real-time reference.
Frequently Asked Questions
What is UTC and how does it relate to time zones?
UTC (Coordinated Universal Time) is the global standard time reference. All time zones are calculated as offsets from UTC (e.g., EST is UTC-5, CET is UTC+1). This tool shows UTC offsets for each city so you can understand the difference between local and universal time.
Why do some cities have non-standard UTC offsets?
Many countries use daylight saving time (DST), which shifts the local time forward by one hour during summer months. This tool automatically accounts for DST based on your system’s time settings, so the displayed offsets reflect the current season.
Can I customize which cities appear on my clock?
Yes! Click the “+ Add City” button to search for and add any city in the world. You can also remove the default cities by clicking the “×” button on their cards. Your selections are saved in your browser’s local storage.
Is my data stored on a server?
No. This world clock runs entirely in your browser. All calculations are done locally, and your city selection is stored only in your browser’s local storage. No data is sent to any server.
Why is my city highlighted differently?
The tool automatically detects your local timezone and highlights your city with a special accent color. This makes it easy to compare your current time with times in other parts of the world.
How accurate is the time display?
The time is sourced from your device’s system clock and updates every second. Accuracy depends on your device’s time synchronization. For precise timekeeping, ensure your device’s date and time are correctly set.