You're viewing an article in TMO's historic archive vault. Here, we've preserved the comments and how the site looked along with the article. Use this link to view the article on our current site:
Mac OS X and Daylight Saving Time
Mac OS X and Daylight Saving Time
Mac OS X and Daylight Saving Time
by , 2:30 PM EDT, November 2nd, 2007
In the U.S., we go off DST this weekend. Mac OS X since 10.4.5 has been ready for the new changes in the U.S. Daylight Saving Time rules for 2007, that is DST started on March 11th and ends on November 4th. In version 10.4.8, Apple added additional recent changes for other countries. As a result, in the U.S., anyone with Mac OS X 10.4.5 or later will be ready for the weekend change.
For more information on Apple's Daylight Saving Time OS changes, see Apple support article # 305056. That article also references a fix for those still using 10.3.9.
For more information about Daylight Saving Time in general, see the Webexibits page or the U.S. Naval Observatory site.
Observer Comments
Show: Subjects Only | Full Comments
Close
Name:VSeward
- TMO Staff
Posts: 972
Joined: 28 Jun 2001
Fri Nov 02, 2007 7:16 pm Subject: I would not expect less...
Fri Nov 02, 2007 7:16 pm Subject: I would not expect less...
Close
Name:Sir Harry Flashman
Posts: 792
Joined: 08 Feb 2007
Fri Nov 02, 2007 9:08 pm Subject: Technically true, but
Fri Nov 02, 2007 9:08 pm Subject: Technically true, but
Close
Name:Sir Harry Flashman
Posts: 792
Joined: 08 Feb 2007
Fri Nov 02, 2007 9:12 pm Subject: Falling back is a later this year
Fri Nov 02, 2007 9:12 pm Subject: Falling back is a later this year
QuoteVSeward wrote:
I don't recall having to play with DST adjustments on any OS X Mac, ever.
Anyone else have this experience?
Vern
The shift to standard time is later this year, by week I think. A lot of devices with embedded OSs of some sort will have already changed the time, things that are not connected to the "internets." Apple probably slipped this in an update earlier this year.
QuoteVSeward wrote:
I don't recall having to play with DST adjustments on any OS X Mac, ever.
Anyone else have this experience?
Vern
You, like many Mac users, probably have your computer auto-update the time by checking someone's servers.
This article is in reference to the internal settings of the computer. If you go by the OS programming, depending on your OS, it might be wrong this weekend. The point is that an OS 10.5 computer that's not on the internet will update correctly.
But for most of us, it doesn't matter because even if the OS is wrong, once it checks the servers it will fix itself before you even wake up.
Close
Name:Sir Harry Flashman
Posts: 792
Joined: 08 Feb 2007
Sat Nov 03, 2007 12:06 pm Subject: Gotta love the headline
Sat Nov 03, 2007 12:06 pm Subject: Gotta love the headline
In today's San Diego Union Tribune:
"Hard to clock just how much energy is saved by extra daylight-saving time"
Close
Name:smokeonit
Posts: 25
Joined: 02 Feb 2005
Sat Nov 03, 2007 1:32 pm Subject: EU CET went smooth...
Sat Nov 03, 2007 1:32 pm Subject: EU CET went smooth...
Close
Name:reznorb5
Posts: 23
Joined: 24 Mar 2003
Sat Nov 03, 2007 2:20 pm Subject: re: I would not expect less...
Sat Nov 03, 2007 2:20 pm Subject: re: I would not expect less...
QuoteSmall White Car wrote:QuoteVSeward wrote:
I don't recall having to play with DST adjustments on any OS X Mac, ever.
Anyone else have this experience?
Vern
You, like many Mac users, probably have your computer auto-update the time by checking someone's servers.
This article is in reference to the internal settings of the computer. If you go by the OS programming, depending on your OS, it might be wrong this weekend. The point is that an OS 10.5 computer that's not on the internet will update correctly.
But for most of us, it doesn't matter because even if the OS is wrong, once it checks the servers it will fix itself before you even wake up.
That is not correct. All Macs would be incorrect after the change if they're not updated. Macs (and Unix-based systems in general) set their date/time data on the hardware in GMT. Then it is up to the operating system to adjust for time zone and DST as needed. Around the world, every Mac with the correct time, Internet-updated or not, will have the same time set in GMT on the hardware.
Close
Name:j.martellaro
- TMO Staff
Posts: 97
Joined: 07 Dec 2006
Tue Nov 06, 2007 5:10 pm Subject: Checking Time Servers
Tue Nov 06, 2007 5:10 pm Subject: Checking Time Servers
Comments are currently closed. Please email the author instead.
Recent Headlines - Updated July 6th
- Mon, 11:17 AM
- Ted Landau's User Friendly View - Apple’s LED Cinema Display: A Too Short Story
- 11:11 AM
- Product News - Photo Recovery for Mac Adds Photoshop Support
- 10:39 AM
- Hot Forum Topic - iPhones in Education
- 8:47 AM
- News - Apple Employee Injured in Store Shooting
- Fri, 10:29 AM
- News - Apple Warns of Learning Interchange Security Breach
- 7:30 AM
- News - Happy Fourth of July!
- Thu, 6:07 PM
- TMO Scoop - Psystar Moves to Drop Bankruptcy Ahead of Apple Legal Battle
- 5:37 PM
- News - Uncomfirmed Reports Say Apple & Nvidia On The Outs
- 4:57 PM
- News - Microsoft Sick Over Barf Ad
- 4:09 PM
- Product News - KRK Ships R6 Passive Studio Monitor for Recording
- 3:45 PM
- John Martellaro's Blog - Particle Debris (week ending 7/2) Juiced, Joost and Goosed
- 3:12 PM
- Product News - ExactScan 2 Pro Released
The Mac Observer Reader Specials
- Download Typestyler, still the Ultimate Styling Tool for Internet, Print and Video Graphics. Works great in Classic with a Native OS X Version on the way. Free Tryout: www.typestyler.com
OWC: Big Drives, High Performance - Not High Prices! SATA 3.5" up to 1.5TB. Notebook up to 500GB. FW up to 6.0TB. 1.0TB Drive Models from as low as $97.99 www.MacSales.com
If you're using a Mac, then you've gotta check out Full Tilt Poker for Mac. This Full Tilt Poker bonus code does the unthinkable, it actually rewards!
RamJet Memory: MacBook and MacBook Pro 4GB kits for $57.99! Mac Pro 4GB Kits $99.99! iMac and Mac mini 4GB Kits for $57.99! 1TB SATA Hard Drives for $109.99! Click hereFor the latest Apple products use Ciao, a price comparison website, to find laptops like MacBook Air. Then find the best prices on MP3 players and use our comparison tool to evaluate mobile phones like the Apple iPhone.
Laptop Hardware Provided by TechRestore - Overnight Mac & iPod Repairs.
