macOS Calendar DST Change Problem

Question

Level 1

13 points

macOS Calendar DST Change Problem

Hello All,

I'm based in Lisbon, Portugal, working for a company whose HQ is in California. My local timezone is WET (Western European Time) and it's quite common to have meetings with colleagues in PST timezone (Pacific Standard Time). So I'm 8 hours ahead from my colleagues. Recently, on Mar 12th, 2017, California entered their DST (Daylight Saving Time) period, or PDT (Pacific Daylight Time), and now, I'm 7 hours ahead from my colleagues.

Both my iPhone and macOS are connected to my company Exchange email and calendar server. My Phone reacted well to this change, while my macOS still shows me the events in PST instead of PDT. I also have Outlook configured on my macOS and this one is also showing the events correctly in PDT.

My current settings that may be relevant:

Calendar -> Preferences -> Advanced -> Turn on time zone support is "ON";

Preferences -> Date & Time -> Set date and time automatically points to "Apple Europe (time.euro.apple.com.)";

Preferences -> Date & Time -> Time Zone -> Set time zone automatically using current location is "ON";

Any help is appreciated, I'm missing calls because of this.

Regards,

ANx

MacBook Pro with Retina display, macOS Sierra (10.12.2), null

Posted on Mar 21, 2017 3:10 AM

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Answer 1

tygb

Level 9

64,764 points

Mar 28, 2017 3:28 AM in response to anxanywhere

As per this article : macOS Sierra: Date & Time System Preferences

Set the time manually: Deselect “Set date and time automatically.” Click today’s date on the calendar, drag the clock’s hands to show the correct time (or enter the time), then click Save.You can also use the up and down arrows next to the date or time field, or type over the current date or time.

I am not sure to be very honest , and take a second opinion before applying with apple support team .

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Answer 2

Mar 21, 2017 7:49 AM in response to anxanywhere

I am here in Lisbon, too, and I don't see the same problem.

My settings are a bit different, and that *may* help.

I went to check and I realized that I have "set date and time automatically" from Apple Americas/US, instead of Europe; when I look at an event at the time zone for Cupertino, I get PDT.

So you may want to try changing this and see if that fixes it.

Also of note: Europe will enter daylight saving time this coming Sunday, so you may want to recheck by then if everything falls into place, or not.

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Answer 3

anxanywhere Author

Level 1

13 points

Mar 21, 2017 2:58 PM in response to Luis Sequeira1

Hi Luis,

Thanks for the hint.

I change it that way, but unfortunately didn't solve the problem.

When the Lisbon Daylight saving time comes, March 26, the calendar will look ok again.

Is you macOS Calendar connected with a Exchange or other server?

ANx

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Answer 4

anxanywhere Author

Level 1

13 points

Mar 25, 2017 6:47 AM in response to anxanywhere

Tested on some other MacBook with Calendar connected to Exchange server and the problem is the same: events created before PDT still appears in PST time. Configuring the Exchange account on Outlook client will show the time correctly... but this is not what I want.

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Answer 5

anxanywhere Author

Level 1

13 points

Mar 28, 2017 2:24 AM in response to anxanywhere

Still with this problem, but now that Portugal entered his DST, the events of macOS Calendar booked during the PST period now look ok. Please note this is not a solution for the issue originally reported, since on "29 Oct 2017 - Daylight Saving Time Ends" I will face this issue again.

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Answer 6

dot.com

Level 4

2,455 points

Mar 21, 2017 4:19 PM in response to dot.com

Oops - forgot to add the link:

Haiti date and time

Good luck...

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Answer 7

tygb

Level 9

64,764 points

Mar 25, 2017 8:12 AM in response to anxanywhere

You can look this article : iCloud: Change your calendar’s time zone

:

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Answer 8

dot.com

Level 4

2,455 points

Mar 21, 2017 4:19 PM in response to anxanywhere

Take a look here for a possible fix.

Good luck...

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Answer 9

anxanywhere Author

Level 1

13 points

Mar 25, 2017 6:40 AM in response to dot.com

Thanks for you help, by using zdump on a shell, I can see that tz were updates correctly for PST -> PDT change and another proof of that is that Outlook on the same system behaves correctly.

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Answer 10

Eric Root

Level 10

684,675 points

Mar 25, 2017 7:15 AM in response to anxanywhere

Have you tried going to System Preferences/Internet Accounts, then signing out of the Exchange account in Calendar and then signed back in to see if it will force a new sync?

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