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Yes, absolutely! All tools on TimeSync Hub are completely free to use. There are no hidden fees, subscriptions, or premium tiers.
No. All calculations are performed entirely in your browser. We don't collect, store, or transmit any of your data.
Our tools use JavaScript's built-in Date and Intl APIs, which are based on the IANA Time Zone Database—the same database used by major operating systems and browsers worldwide.
Most tools will work offline once the page is loaded, as they run entirely in your browser. However, you'll need an internet connection to initially load the website.
Currently, we don't offer a public API. All our tools are designed for direct use through our website interface.