How to get the user’s timezone in JavaScript with Edge Functions

To adapt and localize times in the browser with JavaScript, developers can use the Date object's toLocaleString() method or the Intl.DateTimeFormat() method. However, these methods have drawbacks, such as displaying un-personalized content before JavaScript kicks in or failing to load on some devices. To overcome these challenges, Netlify Edge Functions provides a solution by allowing developers to use native JavaScript APIs within edge functions, eliminating the need for client-side JavaScript and server-side logic. By leveraging Edge Functions, developers can personalize timezones without introducing additional infrastructure, making it easier to adapt dates and times according to different locales and timezones in a virtual and remote-first world.