The days is passing incorrectly between calls.
Spec text:
https://tc39.es/proposal-temporal/#sec-temporal-differencetemporalplaindatetime

Bug: v8:11544
Change-Id: If818d0f42bdd3260e68eef2c6aba1c3781632c93
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3857869
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83046}