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Polyfill: String parsing cases not handled correctly

non-prod-polyfillTHIS POLYFILL IS NOT FOR PRODUCTION USE!THIS POLYFILL IS NOT FOR PRODUCTION USE!

test262

Status: Open.

#3269 In tc39/proposal-temporal;

· ptomato opened on Feb 5, 2026

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Stage 4

polyfill: rounding large duration to days causes 1 day error

non-prod-polyfillTHIS POLYFILL IS NOT FOR PRODUCTION USE!THIS POLYFILL IS NOT FOR PRODUCTION USE!

test262

Status: Open.

#3259 In tc39/proposal-temporal;

· fabon-f opened on Jan 21, 2026

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Stage 4

Polyfill: Exception incorrectly thrown with maximum allowed PlainYearMonth in some non-ISO calendars

non-prod-polyfillTHIS POLYFILL IS NOT FOR PRODUCTION USE!THIS POLYFILL IS NOT FOR PRODUCTION USE!

Status: Open.

#3251 In tc39/proposal-temporal;

· catamorphism opened on Jan 14, 2026

Test coverage gap in NudgeToCalendarUnit

test262

Status: Open.

#3235 In tc39/proposal-temporal;

· catamorphism opened on Dec 20, 2025

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Stage 4

Polyfill: Coverage gap in calendarToIsoDate

test262

Status: Open.

#3217 In tc39/proposal-temporal;

· catamorphism opened on Dec 19, 2025

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Stage 4

Accurate JSON representation for duration

behaviorRelating to behavior defined in the proposalRelating to behavior defined in the proposal

normativeWould be a normative change to the proposalWould be a normative change to the proposal

Status: Open.

#3095 In tc39/proposal-temporal;

· dsnet opened on Feb 21, 2025

Add %Temporal% to well-known intrinsic objects table

test262

Status: Open.

#3087 In tc39/proposal-temporal;

· ptomato opened on Feb 11, 2025

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Stage 4

Tracking issue for integration into the web platform

integration

meta

Status: Open.

#3075 In tc39/proposal-temporal;

· ptomato opened on Jan 16, 2025

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Stage 4

AdjustDateTimeStyleFormat: Don't adjust format when no conflicting options are present?

test262

Status: Open.

#3062 In tc39/proposal-temporal;

· anba opened on Dec 11, 2024

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Stage 4

Cookbook: Parsing localized timestamps

documentationAdditions to documentationAdditions to documentation

Status: Open.

#2004 In tc39/proposal-temporal;

· nicolasr75 opened on Jan 18, 2022

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Post Stage 4

Temporal quick reference

documentationAdditions to documentationAdditions to documentation

Status: Open.

#1844 In tc39/proposal-temporal;

· chrisveness opened on Sep 22, 2021

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Post Stage 4

Recommended patterns for detecting and cloning any Temporal object

documentationAdditions to documentationAdditions to documentation

Status: Open.

#1841 In tc39/proposal-temporal;

· justingrant opened on Sep 21, 2021

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Post Stage 4