Temporal: Modern Dates and Times in JavaScript

The Temporal proposal adds modern date and time handling to JavaScript, providing a built-in library for dates and times similar to those in other programming languages.

Temporal aims to address the deficiencies of the existing Date object in JavaScript, such as unwieldy APIs and mutability issues, by providing a more robust and strongly typed system for date and time management.

Temporal provides a strongly typed and immutable approach to date and time management, with support for non-Gregorian calendars and better integration with JavaScript's internationalization facilities.

Temporal introduces several types including Instant, PlainDate, PlainTime, PlainYearMonth, PlainMonthDay, ZonedDateTime, and Duration, each serving different purposes in date and time representation.

Temporal introduces the ZonedDateTime type, which accounts for time zones and daylight saving time changes, providing accurate representation of exact moments in time with time zone rules.

The Instant type represents an exact time point on the timeline with nanosecond precision, without any calendar or time zone information.

Temporal objects are immutable to prevent unwanted modifications by external code, enhancing reliability and predictability in date and time operations.

Yes, Temporal is designed to support non-Gregorian calendars, allowing developers to accurately handle dates in various cultural and regional contexts.

Temporal provides arithmetic methods such as add, subtract, since, and until, allowing precise duration calculations and adjustments across different types of date and time representations.

Developers can explore the Temporal API through its documentation, and once it graduates, it will be available on MDN alongside other JavaScript built-ins.