Nice! Is this also fixed on the 3.14 and 3.13 branches?

I believe the fix for the test was introduced in your ac14d4a commit, which apparently did go into 3.14, so I would say it does "need" to get backported to 3.14 for completeness' sake.

Thanks @KowalskiThomas for the PR, and @JelleZijlstra for merging it 🌮🎉.. I'm working now to backport this PR to: 3.14.
🐍🍒⛏🤖

Sorry, @KowalskiThomas and @JelleZijlstra, I could not cleanly backport this to 3.14 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker a386a52d8c093381792e39f93eb1df63d1584b9e 3.14

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot ARM64 MacOS M1 Refleaks NoGIL 3.x (tier-2) has failed when building commit a386a52.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/1368/builds/5044) and take a look at the build logs.
4. Check if the failure is related to this commit (a386a52) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/1368/builds/5044

Failed tests:

• test_zipfile

Failed subtests:

• test_write_without_source_date_epoch - test.test_zipfile.test_core.OtherTests.test_write_without_source_date_epoch

Summary of the results of the build (if available):

==

Traceback (most recent call last):
  File "/Users/buildbot/buildarea/3.x.itamaro-macos-arm64-aws.macos-with-brew.refleak.nogil/build/Lib/test/test_zipfile/test_core.py", line 1906, in test_write_without_source_date_epoch
    self.assertAlmostEqual(z_time, c_time, delta=1)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 32 != 34 within 1 delta (2 difference)


Traceback (most recent call last):
  File "/Users/buildbot/buildarea/3.x.itamaro-macos-arm64-aws.macos-with-brew.refleak.nogil/build/Lib/test/test_zipfile/test_core.py", line 1906, in test_write_without_source_date_epoch
    self.assertAlmostEqual(z_time, c_time, delta=1)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 48 != 50 within 1 delta (2 difference)