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#4007 — 20.3.1.9 Local Time: local time computation at DST

• bug_id: 4007
• creation_ts: 2015-02-18 15:34:00 -0800
• short_desc: 20.3.1.9 Local Time: local time computation at DST
• delta_ts: 2015-02-18 15:34:34 -0800
• product: Draft for 7th Edition
• component: Deferred from 6th edition
• version: unspecified
• rep_platform: All
• op_sys: All
• bug_status: CONFIRMED
• priority: Normal
• bug_severity: normal
• everconfirmed: true
• reporter: André Bargull
• assigned_to: Allen Wirfs-Brock

---

• commentid: 12944
• comment_count: 0
• who: André Bargull
• bug_when: 2015-02-18 15:34:34 -0800

From https://code.google.com/p/v8/source/detail?r=24499

Or more specifically:
https://code.google.com/p/v8/source/diff?spec=svn24499&r=24499&format=side&path=/branches/bleeding_edge/src/date.h#sc_svn24499_113

The utc to local time computation as specified in 20.3.1.9 does not seem to be correct when the given time is during a DST transition.

I'm directly filing this bug against ES7 because it's highly unlikely someone is going to verify this issue right now.


Related:
https://code.google.com/p/v8/issues/detail?id=3116
https://code.google.com/p/v8/issues/detail?id=3637
https://bugzilla.mozilla.org/show_bug.cgi?id=1084434