# Weird Macintosh time of day issues

**URL:** <https://boards.straightdope.com/t/weird-macintosh-time-of-day-issues/423835>\
**Category:** Factual Questions\
**Created:** [October 24, 2007, 4:40pm UTC](https://boards.straightdope.com/t/weird-macintosh-time-of-day-issues/423835 "2007-10-24T16:40:42Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Cartooniverse](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cartooniverse/32/3084_2.png) [@Cartooniverse](https://boards.straightdope.com/u/Cartooniverse)\
**Post date:** [October 24, 2007, 4:40pm UTC](https://boards.straightdope.com/t/weird-macintosh-time-of-day-issues/423835/1 "2007-10-24T16:40:42Z")

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So. I have Mac OS-X 10.4.9 on a Mini. I use the native Macintosh mail program. I have the columns of info to include Date received. The software also shows time incoming.

For the last few days, my outgoing emails come back to me in CC form- and land in the email list an hour earlier. The timestamp is one hour before I sent it. Impossible, I say !

Incoming mail from the world is marked accurately. Outgoing is marked WITHIN THE BODY of the email properly, to the second. But the time stamp given by the email software is an hour off.

The clock on my Mac OS is set properly to EST.

Weird. Thoughts?

Cartooniverse

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**Author:** ![Terminus\_Est](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/terminus_est/32/3087_2.png) [@Terminus\_Est](https://boards.straightdope.com/u/Terminus_Est)\
**Post date:** [October 24, 2007, 4:45pm UTC](https://boards.straightdope.com/t/weird-macintosh-time-of-day-issues/423835/2 "2007-10-24T16:45:59Z")

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[QUOTE=Cartooniverse]  
The clock on my Mac OS is set properly to EST.  
[/QUOTE]

There’s your problem. It’s still Daylight Saving Time.

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**Author:** ![Finagle](https://avatars.discourse-cdn.com/v4/letter/f/b19c9b/32.png) [@Finagle](https://boards.straightdope.com/u/Finagle)\
**Post date:** [October 24, 2007, 4:51pm UTC](https://boards.straightdope.com/t/weird-macintosh-time-of-day-issues/423835/3 "2007-10-24T16:51:49Z")

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My guess is that it has something to do with the fooling around with the changes in Daylight Savings Time over the past couple of years. In looking at the Apple support page, I see that the latest operating system [patch](http://www.apple.com/support/downloads/macosx1048comboupdateppc.html) contains fixes for daylight savings time in 2006 and 2007. So if you haven’t updated your computer lately, that could be the answer.

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**Author:** ![Cartooniverse](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cartooniverse/32/3084_2.png) [@Cartooniverse](https://boards.straightdope.com/u/Cartooniverse)\
**Post date:** [October 27, 2007, 6:46pm UTC](https://boards.straightdope.com/t/weird-macintosh-time-of-day-issues/423835/4 "2007-10-27T18:46:17Z")

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Lemme try that.

My Mac is showing appropriate time, though…

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**Author:** ![panache45](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/panache45/32/64_2.png) [@panache45](https://boards.straightdope.com/u/panache45)\
**Post date:** [October 27, 2007, 7:25pm UTC](https://boards.straightdope.com/t/weird-macintosh-time-of-day-issues/423835/5 "2007-10-27T19:25:03Z")

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My Mac (OS 10.4.10) has never had a problem with Daylight-Saving-Time issues.

(Of course I may have to amend that statement next week.)

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**Author:** ![picunurse](https://avatars.discourse-cdn.com/v4/letter/p/7bcc69/32.png) [@picunurse](https://boards.straightdope.com/u/picunurse)\
**Post date:** [October 27, 2007, 8:44pm UTC](https://boards.straightdope.com/t/weird-macintosh-time-of-day-issues/423835/6 "2007-10-27T20:44:54Z")

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[QUOTE=Cartooniverse]  
Lemme try that.

My Mac is showing appropriate time, though…  
[/QUOTE]

That’s because you Mac updates it clock everytime you log onto the internet, while your mail doesn’t (I’m guessing)

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**Author:** ![Sunspace](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sunspace/32/1250_2.png) [@Sunspace](https://boards.straightdope.com/u/Sunspace)\
**Post date:** [October 27, 2007, 10:05pm UTC](https://boards.straightdope.com/t/weird-macintosh-time-of-day-issues/423835/7 "2007-10-27T22:05:46Z")

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So when _does_ DST end in the Eastern time zone?

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**Author:** ![beowulff](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/beowulff/32/542_2.png) [@beowulff](https://boards.straightdope.com/u/beowulff)\
**Post date:** [October 27, 2007, 11:19pm UTC](https://boards.straightdope.com/t/weird-macintosh-time-of-day-issues/423835/8 "2007-10-27T23:19:26Z")

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November 4th: [Daylight Saving Time - When do we change our clocks?](http://webexhibits.org/daylightsaving/b.html)
