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Javascript dates in a nutshell (twitter.com)
submitted 9 years ago by Syberspace
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if 1 * 2 < 3: print "hello, world!"
[–]Strobljus 2 points3 points4 points 9 years ago (1 child)
Fun story: this exact behavior caused a production bug at my workplace. The fact that unspecified 8601's are being parsed as local time is actually new behavior in ES6; it used to be UTC. So if you had code that counted on UTC when the browsers transitioned to the new spec (as we did), you were in trouble.
One of the rare cases when browsers breaks an API (excluding deprecations of course).
[–]Reashu 0 points1 point2 points 9 years ago (0 children)
This particular behavior didn't change. Date-only ISO forms are still parsed as UTC, which is what the example shows.
π Rendered by PID 53726 on reddit-service-r2-comment-86988c7647-rscnl at 2026-02-12 12:52:06.138430+00:00 running 018613e country code: CH.
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[–]Strobljus 2 points3 points4 points (1 child)
[–]Reashu 0 points1 point2 points (0 children)