US Patent 9602574 Prerendering time zone aware layouts for rich web apps

Provided are methods and systems for rendering and displaying an initial layout of a web application (e.g., calendar application), where the layout includes data specific to a time zone determined to be applicable to a user. Server-side rendering of the initial layout is utilized without compromising the correctness of the initial layout if the server-side heuristics fail. The methods and systems are designed such that it is not necessary to “know,” “fingerprint,” or “reverse engineer” the browser's local time zone in order to validate the time data to be displayed with the user's time-bound information (e.g., calendar data) in the web application. Furthermore, meaningful time data can be displayed to the user without the full web application having to execute in the browser.