JavaScript Temporal is coming | MDN Blog
Briefly

The article discusses how the Temporal API enhances handling of date and time by providing features like timezone support and simplified interactions with non-Gregorian calendars. For instance, developers can easily obtain the current date in a specified timezone and compute dates in calendars such as Chinese or Islamic. It also demonstrates how to work with Unix timestamps for common API interactions, showcasing the API's capabilities for both simple date retrieval and complex calendar calculations.
Many new utilities of Temporal allow for simplified and accurate handling of dates, times, and conversions between various calendars, with built-in timezone support.
With Temporal, you can easily calculate dates in multiple calendar systems like Hebrew, Chinese, and Islamic, providing flexibility for global applications.
Read at MDN Web Docs
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