diff --git a/polyfill/test/expected-failures.txt b/polyfill/test/expected-failures.txt
index 81c595ff80..2fa30daf77 100644
--- a/polyfill/test/expected-failures.txt
+++ b/polyfill/test/expected-failures.txt
@@ -6,3 +6,10 @@ staging/Intl402/Temporal/old/instant-toLocaleString.js
 staging/Intl402/Temporal/old/time-toLocaleString.js
 staging/Intl402/Temporal/old/zoneddatetime-toLocaleString.js
 intl402/DateTimeFormat/prototype/format/temporal-objects-resolved-time-zone.js
+
+# These are caught by the default test glob, but are unrelated to Temporal.
+# They rely on Intl.DateTimeFormat supporting offset time zones.
+intl402/DateTimeFormat/prototype/format/offset-timezone-gmt-same.js
+intl402/DateTimeFormat/prototype/formatToParts/offset-timezone-correct.js
+intl402/DateTimeFormat/prototype/resolvedOptions/offset-timezone-basic.js
+intl402/DateTimeFormat/prototype/resolvedOptions/offset-timezone-change.js
diff --git a/polyfill/test262 b/polyfill/test262
index e98bfb332e..dceb204259 160000
--- a/polyfill/test262
+++ b/polyfill/test262
@@ -1 +1 @@
-Subproject commit e98bfb332e653a5c8c38763574140dae1417b7a8
+Subproject commit dceb204259abc800b7a6ec7bccf07f9a7c69297d