How do I Change the Time Zone on multiple (100s) of photos?

I'm using macOS Monterey 12.7.2, and Photos Version 7.0 (460.0.120) on a 2021 14" MacBook Pro M1Pro.

Here's a work-around, based on adjusting the image date/time, not the location.

Beginning at Library, when I select multiple images (hundreds), I then select Image, then Adjust Date/Time.

In the US, a time zone change is typically by one hour, so I moved the highlight to Hour, and used the up/down arrows at the far right to select -1 hour.

Then select Adjust, and the date/time of every image will be adjusted by -1 hour, zero minutes, zero seconds.

I didn't attempt to adjust Location.

(Of course, I selected Cancel, because I didn't want to actually adjust the time of these images in my photo library.)

There is no time zone option. You can change the time on the image if you wish at one time by selecting all in photos on a Mac or by using third-party software.

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