[tz] Fwd: Quintana Roo change to EST?

Matt Johnson mj1856 at hotmail.com
Sat Feb 7 01:07:28 UTC 2015

Also, Microsoft is moving ahead with DST for Quintana Roo in an upcoming Hotfix for Windows.

To: eggert at cs.ucla.edu; tz at iana.org
From: mj1856 at hotmail.com
Date: Thu, 5 Feb 2015 20:51:45 -0800
Subject: Re: [tz] Fwd: Quintana Roo change to EST?

The CENAM belongs to the Economic Secretary.  My understanding is that this is the official department that would set the policy - similar to NIST in the US.

Paul Eggert

‎2/‎5/‎2015 4:29 PM

Matt Johnson;
Time Zone Database

Re: [tz] Fwd: Quintana Roo change to EST?

There were conflicting reports about this back when Mexico was

considering doing the change in October of this year.  As I understand 

it, Mexico decided to move the change up to this month, and to stay on 

EST all year.  For a brief summary please see:


It could well be that this is wrong.  There's at least one 

English-language source saying that it hasn't been decided whether 

Quintana Roo will observe DST:


and perhaps we'll need a further update once this becomes decided or 

sufficiently clear.  That being said, my (admittedly limited) 

understanding of QRoo politics suggests that they won't observe DST this 

year.  That CENAM web page is reasonably generic and perhaps its author 

didn't think about (or want to think about) predicting exactly what will 

happen in April.

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