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proposal-canonical-tz
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tc39 / proposal-canonical-tz

proposal-canonical-tz

TC39 Proposal (stacked on Temporal) to improve handling of changes to the IANA Time Zone Database

Data & Databases
Explore on GitHubRead Hacker News discussions
2Distinct people
2Mentions
0Explicit recommenders
42GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

TC39 Proposal (stacked on Temporal) to improve handling of changes to the IANA Time Zone Database

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by hour2 dated mentions

Observed mentions: 2025-01-30 15:57:24 UTC to 2025-01-31 03:05:27 UTC.

012025-01-30 15:00:00 UTC to 2025-01-30 16:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJan 30, 15:002025-01-30 16:00:00 UTC to 2025-01-30 17:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-30 17:00:00 UTC to 2025-01-30 18:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-30 18:00:00 UTC to 2025-01-30 19:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-30 19:00:00 UTC to 2025-01-30 20:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-30 20:00:00 UTC to 2025-01-30 21:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-30 21:00:00 UTC to 2025-01-30 22:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsJan 30, 21:002025-01-30 22:00:00 UTC to 2025-01-30 23:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-30 23:00:00 UTC to 2025-01-31 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-31 00:00:00 UTC to 2025-01-31 01:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-31 01:00:00 UTC to 2025-01-31 02:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-31 02:00:00 UTC to 2025-01-31 03:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-31 03:00:00 UTC to 2025-01-31 04:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJan 31, 03:00

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Jan 30, 15:002025-01-30 15:00:00 UTC2025-01-30 16:00:00 UTC101
Jan 30, 16:002025-01-30 16:00:00 UTC2025-01-30 17:00:00 UTC000
Jan 30, 17:002025-01-30 17:00:00 UTC2025-01-30 18:00:00 UTC000
Jan 30, 18:002025-01-30 18:00:00 UTC2025-01-30 19:00:00 UTC000
Jan 30, 19:002025-01-30 19:00:00 UTC2025-01-30 20:00:00 UTC000
Jan 30, 20:002025-01-30 20:00:00 UTC2025-01-30 21:00:00 UTC000
Jan 30, 21:002025-01-30 21:00:00 UTC2025-01-30 22:00:00 UTC000
Jan 30, 22:002025-01-30 22:00:00 UTC2025-01-30 23:00:00 UTC000
Jan 30, 23:002025-01-30 23:00:00 UTC2025-01-31 00:00:00 UTC000
Jan 31, 00:002025-01-31 00:00:00 UTC2025-01-31 01:00:00 UTC000
Jan 31, 01:002025-01-31 01:00:00 UTC2025-01-31 02:00:00 UTC000
Jan 31, 02:002025-01-31 02:00:00 UTC2025-01-31 03:00:00 UTC000
Jan 31, 03:002025-01-31 03:00:00 UTC2025-01-31 04:00:00 UTC101

What Hacker News says

2 sources
justingrantjg·Jan 31, 2025
> https://github.com/tc39/proposal-canonical-tz - appropriately to these comments, a proposal to handle tzdb changes, built on top of JS Temporal, includes some great examples of all the ways this can happen Thanks! I was the co-champion of that proposal. Parts of it were merged into Temporal last year, and other parts are already part of the JS Internationalization (ECMA-402) specification here: https://tc39.es/ecma402/#sec-use-of-iana-time-zone-database
In JavaScript Temporal is coming

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