December 2010 - tz - lists.iana.org

Future time zone home
by Olson, Arthur David (NIH/NCI) [E] Dec. 16, 2010

Dec. 16, 2010

In response to the need to find a new time zone home before I'm eligible to retire in 2012, Eliot Lear and Paul Eggert have authored the draft document "IANA Procedures for Maintaining the Timezone Database" now available from the Internet Engineering Task Force (IETF) web site: http://tools.ietf.org/html/draft-lear-iana-timezone-database-00 Comments on how the draft can be improved are welcome. Also welcome: feedback on whether the proposed approach meets the needs of folks on the time zone mailing list--the proposed approach can't and won't go forward without support from the time zone community. The document includes electronic mail addresses for Eliot and Paul; general comments can also be sent to the time zone mailing list. --ado

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Test cases for zoneinfo data
by Christopher Hunt Dec. 16, 2010

Dec. 16, 2010

Hi there, I'm creating a set of Java classes that closely reflect the structure of the Zoneinfo database. My requirement is driven mostly by wanting to dynamically update Java TimeZone classes i.e. as opposed to compiling a zoneinfo data and re-starting my application. In addition I feel that the ICU and Sun classes do not accurately reflect Zoneinfo structures. I shall open-source this project once it gets to a working point. It'd be terribly helpful if I could get hold of some test cases, automated or otherwise, that verify correct time zone calculations. Would anyone out there have such things? Kind regards, Christopher

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time zone database open questions
by Arthur David Olson Dec. 9, 2010

Dec. 9, 2010

Here are the open time zone database questions I know of. Are the others? 1. Did all of Mexico's Baja California Norte use United States DST rules in 2010, or did only border areas use U.S. DST? What of other Mexican states on the U.S. border? 2. How was DST handled in the West Bank and in Gaza in 2010? How was it handled in previous years? 3. What's the accurate history of the change to use of Shanghai/Beijing time in China? 4. Is there an acceptable way of handling present-day dual timekeeping in Xinjiang, China without either losing track of past practices? 5. Did Windsor and other parts of Ontario, Canada use different DST rules in the past? (See Mark Brader's communication at the end of this message.) --ado # From Mark Brader (2010-03-06): # ... # In the (Toronto) Globe and Mail for Saturday, 1955-09-24, in the bottom # right corner of page 1, it says that Toronto will return to standard # time at 2 am Sunday morning (which agrees with the database), and that: # # The one-hour setback will go into effect throughout most of Ontario, # except in areas like Windsor which remains on standard time all year. # # Windsor is, of course, a lot larger than Nipigon. # # I only came across this incidentally. I don't know if Windsor began # observing DST when Detroit did, or in 1974, or on some other date. # # By the way, the article continues by noting that: # # Some cities in the United States have pushed the deadline back # three weeks and will change over from daylight saving in October.

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update tz-link.htm to add mkdir tz and cd tz like in README
by Gilles Espinasse Dec. 6, 2010

Dec. 6, 2010

I just followed the instructions in tz-link.htm before to see there is no top directory in tz*.tar.gz To avoid that same mistake for others, please find a patch that update tz-link.htm to have the same instructions than in README ( with mkdir tz and cd tz before wget) Gilles

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2nd reading of "Daylight Saving Bill 2010-11" in UK Parliament
by Philip.Pizzey＠sita.aero Dec. 1, 2010

Dec. 1, 2010

Hi there, you may already be aware of this but today's BBC Radio 4 programme "You and Yours" contained a feature about Rebecca Harris MP's Private Members Bill in the UK Parliament. The Bill is entitled "Daylight Saving Bill 2010-11" and proposes "The Bill would require the Government to conduct a cross-departmental analysis of the potential costs and benefits of advancing time by one hour for all, or part of, the year.". The Bill is due for it's second reading in the House of Commons on 3rd December 2010. Here is a link to the You and Yours homepage which does not at this time mention the feature: http://www.bbc.co.uk/radio4/features/you-and-yours and a link to the bill itself: http://services.parliament.uk/bills/2010-11/daylightsaving.html Cheers, Phil. This document is strictly confidential and intended only for use by the addressee unless otherwise stated. If you are not the intended recipient, please notify the sender immediately and delete it from your system.

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