This is possible, but for some reason you can only set the different time zones on the iOS/iPadOS versions of Calendar, not the Mac one. Mac Calendar displays them just fine though. It’s a tiny bit hidden, but once you know easy to do.
First, create or edit your event (you can create on the Mac and then edit on iOS to sort out the time zones). You get this display of the start and end times:
Tap on the start time (not the date) and under the dial for setting the time you can set the time zone. This will also set the time zone for the end time:
If you tap the end time, there is also a time zone setting under the dial. If you change this, it will not affect the start time zone. As soon as this is set to a different time zone to the start time, you can see that the relevant time zone code is displayed to the right of the start and end times:
If you tap the end time again, the dial and time zone selector collapse and you can clearly see the start and end times with their respective time zones:
Save this (tap Done) and you can see the event now reflects the differing time zones for the start and end. The grey text at the top where the date and time are shown shows:
- The start and end times in your current time zone on the line under the date.
- The start and end times in the respective time zones’ local time with the time zone code in brackets on the following line.
So you can use the first line to understand when this is happening in whatever time zone you are currently in, and the second line will correspond to times on train/plane tickets, etc.
You can also see that the coloured block displayed in the calendar day view shows both sets of times: the start and end times of the event in the current time zone and then in brackets the start and end times in the respective time zones with time zone codes:
Although you can’t set separate start and end time zones on Mac Calendar, it also displays them just fine:
