Issues

• Release request: main has fixes that 0.5.1 doesn't (ZonedDateTime near the Instant limits, #341, #347)

  js-temporal/temporal-polyfill#373 · Filter by author craig-o-curtis opened on Sep 19, 2026
  1

• Temporal.Now is non-configurable and cannot be redefined

  js-temporal/temporal-polyfill#363 · Filter by author hi-ogawa opened on Jun 24, 2026

• TypeScript: ZonedDateTime.from() doesn't require timeZone property, but runtime throws error

  js-temporal/temporal-polyfill#352 · Filter by author mohhh-ok opened on Dec 29, 2025

• ZonedDateTime until / since assertion failure: mixed-sign values not allowed as duration fields

  js-temporal/temporal-polyfill#347 · Filter by author phensley opened on Jul 26, 2025
  2

• No enumerable properties on PlainDate breaks testing

  js-temporal/temporal-polyfill#346 · Filter by author andrewbihl opened on Jul 21, 2025
  4

• Error using Temporal.ZonedDateTime.compare

  js-temporal/temporal-polyfill#345 · Filter by author EmilyRagan opened on Jun 26, 2025
  11

• "Missing internal slot calendar-id" error on iOS in React Native

  js-temporal/temporal-polyfill#344 · Filter by author AlteredConstants opened on Jun 2, 2025
  5

• Incorrect conversion between calendars

  js-temporal/temporal-polyfill#341 · Filter by author devongovett opened on May 22, 2025
  3

• Consider removing UMD bundle

  js-temporal/temporal-polyfill#336 · Filter by author ptomato opened on Apr 9, 2025
  1

• Remove sourcemaps and lib/ from shipped package

  js-temporal/temporal-polyfill#335 · Filter by author ptomato opened on Apr 9, 2025
  2

• Support require(esm) in Node.js to avoid dual package hazard

  js-temporal/temporal-polyfill#321 · Filter by author fabon-f opened on Mar 27, 2025
  1

• Consider removing compatibility code such as checks for legacy IANA time zone identifiers

  js-temporal/temporal-polyfill#301 · Filter by author ptomato opened on Mar 3, 2025

• Misleading ZonedDateTime.toString error message

  js-temporal/temporal-polyfill#276 · Filter by author akselinurmio opened on Mar 4, 2024

• inLeapYear in islamic-umalqura calendar

  js-temporal/temporal-polyfill#272 · Filter by author MohsenAlyafei opened on Dec 17, 2023

• Islamic Calendars incorrect dayOfYear

  js-temporal/temporal-polyfill#271 · Filter by author MohsenAlyafei opened on Dec 17, 2023

• Possible bug in parseFromEnUsFormat on some IE configurations

  help wanted
  js-temporal/temporal-polyfill#270 · Filter by author sophiebits opened on Nov 23, 2023
  4

• VSCode debugger's new Symbol.for("debug.description") property for debug descriptions

  js-temporal/temporal-polyfill#261 · Filter by author justingrant opened on Aug 5, 2023
  2

• Rebase tool shouldn't perform any automated merge steps, because bad TS code might be accidentally merged

  js-temporal/temporal-polyfill#250 · Filter by author justingrant opened on Apr 27, 2023
  3

  

• Rebase tool feedback

  js-temporal/temporal-polyfill#236 · Filter by author justingrant opened on Apr 12, 2023
  1

  

• [Help] JSBI to BigInt in webpack

  js-temporal/temporal-polyfill#231 · Filter by author celluj34 opened on Mar 28, 2023
  14

• Expose _repr_ in non-debug builds

  js-temporal/temporal-polyfill#227 · Filter by author lionel-rowe opened on Mar 1, 2023
  7

• Timestamps with offset timezones throw on toLocaleString()

  js-temporal/temporal-polyfill#223 · Filter by author zemlanin opened on Feb 19, 2023
  5

• Add tests for the CLI runner setup used in runtest262.mjs

  good first issuehelp wanted
  js-temporal/temporal-polyfill#219 · Filter by author 12wrigja opened on Feb 6, 2023

• Should we include a DurationFormat polyfill?

  js-temporal/temporal-polyfill#211 · Filter by author justingrant opened on Jan 16, 2023
  4

• Decide how to deal with far-off DST Transition points

  js-temporal/temporal-polyfill#209 · Filter by author 12wrigja opened on Jan 14, 2023
  3