Implementing the Temporal proposal in JavaScriptCore
Summary
Tim Chevalier reports on implementing the Temporal proposal in JavaScriptCore, detailing duration handling, new date types (PlainDate, PlainDateTime, Instant, ZonedDateTime, PlainMonthDay, PlainYearMonth), the relativeTo parameter, and calendar support. The piece highlights testing coverage, PR progress in 2025, and the path toward fully integrating Temporal across engines.