diff --git a/stdlib/unittest/main.pyi b/stdlib/unittest/main.pyi
index 6d970c920096..d29e9a2b8da8 100644
--- a/stdlib/unittest/main.pyi
+++ b/stdlib/unittest/main.pyi
@@ -1,3 +1,4 @@
+import sys
 import unittest.case
 import unittest.loader
 import unittest.result
@@ -23,22 +24,43 @@ class TestProgram:
     progName: str | None
     warnings: str | None
     testNamePatterns: list[str] | None
-    def __init__(
-        self,
-        module: None | str | ModuleType = "__main__",
-        defaultTest: str | Iterable[str] | None = None,
-        argv: list[str] | None = None,
-        testRunner: type[_TestRunner] | _TestRunner | None = None,
-        testLoader: unittest.loader.TestLoader = ...,
-        exit: bool = True,
-        verbosity: int = 1,
-        failfast: bool | None = None,
-        catchbreak: bool | None = None,
-        buffer: bool | None = None,
-        warnings: str | None = None,
-        *,
-        tb_locals: bool = False,
-    ) -> None: ...
+    if sys.version_info >= (3, 12):
+        durations: unittest.result._DurationsType | None
+        def __init__(
+            self,
+            module: None | str | ModuleType = "__main__",
+            defaultTest: str | Iterable[str] | None = None,
+            argv: list[str] | None = None,
+            testRunner: type[_TestRunner] | _TestRunner | None = None,
+            testLoader: unittest.loader.TestLoader = ...,
+            exit: bool = True,
+            verbosity: int = 1,
+            failfast: bool | None = None,
+            catchbreak: bool | None = None,
+            buffer: bool | None = None,
+            warnings: str | None = None,
+            *,
+            tb_locals: bool = False,
+            durations: unittest.result._DurationsType | None = None,
+        ) -> None: ...
+    else:
+        def __init__(
+            self,
+            module: None | str | ModuleType = "__main__",
+            defaultTest: str | Iterable[str] | None = None,
+            argv: list[str] | None = None,
+            testRunner: type[_TestRunner] | _TestRunner | None = None,
+            testLoader: unittest.loader.TestLoader = ...,
+            exit: bool = True,
+            verbosity: int = 1,
+            failfast: bool | None = None,
+            catchbreak: bool | None = None,
+            buffer: bool | None = None,
+            warnings: str | None = None,
+            *,
+            tb_locals: bool = False,
+        ) -> None: ...
+
     def usageExit(self, msg: Any = None) -> None: ...
     def parseArgs(self, argv: list[str]) -> None: ...
     def createTests(self, from_discovery: bool = False, Loader: unittest.loader.TestLoader | None = None) -> None: ...
diff --git a/stdlib/unittest/result.pyi b/stdlib/unittest/result.pyi
index 8d78bc0f7dcf..dfc505936f59 100644
--- a/stdlib/unittest/result.pyi
+++ b/stdlib/unittest/result.pyi
@@ -1,9 +1,12 @@
+import sys
 import unittest.case
 from _typeshed import OptExcInfo
 from collections.abc import Callable
 from typing import Any, TextIO, TypeVar
+from typing_extensions import TypeAlias
 
 _F = TypeVar("_F", bound=Callable[..., Any])
+_DurationsType: TypeAlias = list[tuple[str, float]]
 
 STDOUT_LINE: str
 STDERR_LINE: str
@@ -22,6 +25,8 @@ class TestResult:
     buffer: bool
     failfast: bool
     tb_locals: bool
+    if sys.version_info >= (3, 12):
+        collectedDurations: _DurationsType
     def __init__(self, stream: TextIO | None = None, descriptions: bool | None = None, verbosity: int | None = None) -> None: ...
     def printErrors(self) -> None: ...
     def wasSuccessful(self) -> bool: ...
@@ -37,3 +42,5 @@ class TestResult:
     def addExpectedFailure(self, test: unittest.case.TestCase, err: OptExcInfo) -> None: ...
     def addUnexpectedSuccess(self, test: unittest.case.TestCase) -> None: ...
     def addSubTest(self, test: unittest.case.TestCase, subtest: unittest.case.TestCase, err: OptExcInfo | None) -> None: ...
+    if sys.version_info >= (3, 12):
+        def addDuration(self, test: unittest.case.TestCase, elapsed: float) -> None: ...
diff --git a/stdlib/unittest/runner.pyi b/stdlib/unittest/runner.pyi
index c0ddcdb49208..0033083ac406 100644
--- a/stdlib/unittest/runner.pyi
+++ b/stdlib/unittest/runner.pyi
@@ -1,6 +1,8 @@
+import sys
 import unittest.case
 import unittest.result
 import unittest.suite
+from _typeshed import Incomplete
 from collections.abc import Callable, Iterable
 from typing import TextIO
 from typing_extensions import TypeAlias
@@ -14,23 +16,57 @@ class TextTestResult(unittest.result.TestResult):
     separator2: str
     showAll: bool  # undocumented
     stream: TextIO  # undocumented
-    def __init__(self, stream: TextIO, descriptions: bool, verbosity: int) -> None: ...
+    if sys.version_info >= (3, 12):
+        durations: unittest.result._DurationsType | None
+        def __init__(
+            self, stream: TextIO, descriptions: bool, verbosity: int, *, durations: unittest.result._DurationsType | None = None
+        ) -> None: ...
+    else:
+        def __init__(self, stream: TextIO, descriptions: bool, verbosity: int) -> None: ...
+
     def getDescription(self, test: unittest.case.TestCase) -> str: ...
     def printErrorList(self, flavour: str, errors: Iterable[tuple[unittest.case.TestCase, str]]) -> None: ...
 
 class TextTestRunner:
     resultclass: _ResultClassType
-    def __init__(
-        self,
-        stream: TextIO | None = None,
-        descriptions: bool = True,
-        verbosity: int = 1,
-        failfast: bool = False,
-        buffer: bool = False,
-        resultclass: _ResultClassType | None = None,
-        warnings: type[Warning] | None = None,
-        *,
-        tb_locals: bool = False,
-    ) -> None: ...
+    # TODO: add `_WritelnDecorator` type
+    # stream: _WritelnDecorator
+    stream: Incomplete
+    descriptions: bool
+    verbosity: int
+    failfast: bool
+    buffer: bool
+    warnings: str | None
+    tb_locals: bool
+
+    if sys.version_info >= (3, 12):
+        durations: unittest.result._DurationsType | None
+        def __init__(
+            self,
+            stream: TextIO | None = None,
+            descriptions: bool = True,
+            verbosity: int = 1,
+            failfast: bool = False,
+            buffer: bool = False,
+            resultclass: _ResultClassType | None = None,
+            warnings: str | None = None,
+            *,
+            tb_locals: bool = False,
+            durations: unittest.result._DurationsType | None = None,
+        ) -> None: ...
+    else:
+        def __init__(
+            self,
+            stream: TextIO | None = None,
+            descriptions: bool = True,
+            verbosity: int = 1,
+            failfast: bool = False,
+            buffer: bool = False,
+            resultclass: _ResultClassType | None = None,
+            warnings: str | None = None,
+            *,
+            tb_locals: bool = False,
+        ) -> None: ...
+
     def _makeResult(self) -> unittest.result.TestResult: ...
     def run(self, test: unittest.suite.TestSuite | unittest.case.TestCase) -> unittest.result.TestResult: ...
diff --git a/tests/stubtest_allowlists/py312.txt b/tests/stubtest_allowlists/py312.txt
index 85ce2b30101d..41c3e2b2ee22 100644
--- a/tests/stubtest_allowlists/py312.txt
+++ b/tests/stubtest_allowlists/py312.txt
@@ -68,17 +68,9 @@ typing_extensions.Protocol
 typing_extensions.SupportsAbs.__type_params__
 typing_extensions.SupportsRound.__type_params__
 unittest.TestLoader.loadTestsFromModule
-unittest.TestProgram.__init__
-unittest.TestResult.addDuration
-unittest.TextTestResult.__init__
-unittest.TextTestRunner.__init__
 unittest.load_tests
 unittest.loader.TestLoader.loadTestsFromModule
-unittest.main.TestProgram.__init__
 unittest.mock.NonCallableMock.__new__
-unittest.result.TestResult.addDuration
-unittest.runner.TextTestResult.__init__
-unittest.runner.TextTestRunner.__init__
 urllib.request.AbstractHTTPHandler.__init__
 urllib.request.HTTPSHandler.__init__
 zipfile.Path.glob