The free, fast and private world clock — track time across 40+ cities, set alarms in any timezone, and time your activities with our precision stopwatch.
WorldTimeAtlas.org is a free, browser-based world time platform designed for global professionals, travellers, remote teams and anyone who works across time zones. Unlike bloated apps that require sign-ups, subscriptions or invasive tracking, WorldTimeAtlas works instantly in any modern browser — no installation, no account, no cost.
With a single click, you can see the current time in 40+ cities across 6 continents, set programmable alarms in any city's timezone, time your activities with a precision split-time stopwatch, and switch between a beautiful dark and light interface.
💡 Everything runs in your browser. No account, no sign-up, no data sent to any server — ever. Your alarms and preferences are stored only on your device.
Most world clock tools are cluttered with ads, require you to create an account, or bury basic features behind paywalls. WorldTimeAtlas.org was built on a different philosophy: a beautiful, fast and respectful tool that does exactly what it promises — instantly, privately, and for free.
We believe that knowing what time it is in Tokyo or New York should not require giving away your email address or watching an advertisement. WorldTimeAtlas will always be free and always be clean.
WorldTimeAtlas is a passion project and your feedback shapes what gets built next. If you encounter a bug, have a feature suggestion, or want to see a city added, we'd love to hear from you.
📬 Every message is read personally. Thank you for helping make WorldTimeAtlas better for everyone.
WorldTimeAtlas.org is built on a simple, unbreakable promise: your data is yours. We collect the absolute minimum necessary to make the service work.
WorldTimeAtlas.org was designed from the ground up to be privacy-safe. We do not build advertising profiles, we do not sell data, and we do not require any personal information to use our service. Every feature — world clocks, alarms, stopwatch — works entirely within your browser.
🛡️ Your alarms, split times and preferences never leave your device. WorldTimeAtlas has zero access to them. They are stored only in your browser's localStorage.
We do not use your data for advertising, profiling, remarketing or any commercial purpose beyond operating WorldTimeAtlas.org.
| Name | Type | Storage | Purpose | Duration |
|---|---|---|---|---|
| wta_theme | Essential | localStorage | Saves dark/light mode preference | Persistent (local only) |
| wta_alarms | Essential | localStorage | Saves your configured alarms | Persistent (local only) |
| _ga | Analytics | Cookie | Google Analytics — anonymous visitor ID | 2 years |
| _gid | Analytics | Cookie | Google Analytics — session ID | 24 hours |
| _gat | Analytics | Cookie | Throttles Analytics request rate | 1 minute |
You can disable or delete all cookies and localStorage data via your browser settings at any time without affecting the core functionality of WorldTimeAtlas.
We do not use any advertising networks, social media pixels, retargeting tools or third-party data brokers.
📬 To exercise any privacy right or ask a question, contact us directly. We respond within 48 hours on business days.
WorldTimeAtlas.org is safe for all ages and does not knowingly collect any personal information from children under the age of 13 (or under 16 in the EU/UK). If you believe a child has inadvertently provided personal information through our service, please contact us immediately.
WorldTimeAtlas.org is served exclusively over HTTPS (TLS encryption). All alarm and preference data is stored only in your browser's localStorage and is inaccessible to us or any third party. We hold no copies of your personal data on our servers.
We may update this Privacy Policy from time to time to reflect changes in our practices or applicable law. The "Last Updated" date at the top of this page reflects the most recent revision. Continued use of WorldTimeAtlas.org after any modification constitutes your acceptance of the updated policy.
Precision timer — accuracy to 1/100th of a second