This has been an issue on and off over the years, but I have never got a fully working solution.

The problems occur mainly with flights from one time zone to another.

I have a flight for which I enter the start and end times, both local to the airport. However, the destination is in a different time zone.

On my iPhone. I have Time Zone Overide turned off, and while in the destination city, I see 2 times for an event’s details: the local time and the time in the origin.

However, I find that:

  • The time in the Event List shows only the origin time, not the local time.
  • The reminder alerts at the origin time and not the local time.

This applies to other events which were set before the trip.

The question is What do I need to do to see event times and alerts in the local time?

To complete the story, I add the event on my iMac and then rely on my iPhone to keep me informed. Latest version of all software.


I will be flying overseas in a few months, so I can put my possible solution to the test.

I have set the time zone of the flights to floating, which seemed to work when flying interstate earlier.

To be safe, I have also included the local times in the notes section so I can compare; I will also have the original tickets any way. A few years ago I was caught out by the time zone difference, but, fortunately I was early rather than late.

Update 2

I have just come back from an overseas holiday, which involved two other time zones and daylight saving.

I can safely say that setting all times to floating has ensured that all times are local, and everything works as expected.

I have taken to using floating times for all of my travel times, as well as for all of my automated events. What I need to do now is work our how to make it the default for other events.

  • To avoid any error, I always put the correct times within the event title, and I define the event limits in local starting time. When I arrive on destination, I switch to destination local time, the event limits change to local time,. The title information is still OK: start time on starting local zone, ending time on destination local time.
    – dan
    Commented Oct 2, 2017 at 6:14

4 Answers 4


I've just given up creating timezoned start and finish times in MacOS Sierra. But in iOS 10 and iOS 11, you can assign a different timezone to start and finish. It turns up correct in my linked iCloud calendar & my OSX calendar the right way, showing the correct duration and all. Time to fix MacOS


In Calendar Advanced Preferences there is an option to turn on Time Zone Support.

This is not a totally satisfactory solution, as the Time Zone applies to the whole event.

When I am flying I enter Departure time in my local Time Zone, and create a separate event for Arrival in the other Time Zone.

  • 1
    I have taken to entering the local time in the notes section of an event. However, I am experimenting with hand-creating an ical event: it appears to allow me to enter different time zones for the start and finish time.
    – Manngo
    Commented Mar 3, 2017 at 22:45
  • Apropos Time Zone Support, I notice that you can (a) set a specific time zone for an individual event, and (b) set that time zone to floating. When I viewed my calendar in another time zone (by selecting it from the drop down) floating events appeared to display with their original time, not the time-zone adjusted time. I’m not flying out for a while, but this seems to be the solution. If you could verify this and incorporate the results, I could then accept your answer.
    – Manngo
    Commented Mar 4, 2017 at 8:15

Once again I ran into this problem, and again looked for an answer:

The ability to specify start/end times in different time zones is well support in the iOS Calendar app, but not in macOS Calendar. If you enter it on the iOS side, it will then be correctly displayed on the macOS side. That is, on iOS I can enter a calendar item for (say) a flight across time zones, using local airport times. When I look at the item on macOS it says something like “11:47 AM (PDT) to 7:22 PM (EDT)” and the start/end times are as expected

  • D'oh! I first misread the comment from “Keith in Oz” — I just repeated what he said. Commented Apr 24, 2022 at 23:55
  • As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center.
    – Community Bot
    Commented Apr 25, 2022 at 1:52

This issue has been worked on by the microsoft office team and they launched a Dual time zone feature in the new verson (16.11) of outlook. (FYI you need a Office 365 subscription in order to view it.) https://techcommunity.microsoft.com/t5/Outlook-Blog/Outlook-for-Mac-adds-new-time-zone-features-in-Insider-Fast/ba-p/158278

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    – fsb
    Commented Mar 23, 2018 at 19:11

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