diff --git a/stdlib/datetime.pyi b/stdlib/datetime.pyi
index 12e53921e946..6fd241930a0c 100644
--- a/stdlib/datetime.pyi
+++ b/stdlib/datetime.pyi
@@ -1,7 +1,8 @@
 import sys
+from _typeshed import Self
 from time import struct_time
 from typing import ClassVar, NamedTuple, SupportsAbs, Type, TypeVar, overload
-from typing_extensions import final
+from typing_extensions import SupportsIndex, final
 
 _S = TypeVar("_S")
 
@@ -13,6 +14,7 @@ class tzinfo:
     def utcoffset(self, dt: datetime | None) -> timedelta | None: ...
     def dst(self, dt: datetime | None) -> timedelta | None: ...
     def fromutc(self, dt: datetime) -> datetime: ...
+    def __reduce__(self: Self) -> tuple[Type[Self], tuple[Self]]: ...
 
 # Alias required to avoid name conflicts with date(time).tzinfo.
 _tzinfo = tzinfo
@@ -75,6 +77,11 @@ class date:
     def __sub__(self, other: timedelta) -> date: ...
     @overload
     def __sub__(self, other: date) -> timedelta: ...
+    def __reduce__(self: Self) -> tuple[Type[Self], tuple[bytes]]: ...
+    if sys.version_info >= (3, 8):
+        def __reduce_ex__(self: Self, __protocol: SupportsIndex) -> tuple[Type[Self], tuple[bytes]]: ...
+    else:
+        def __reduce_ex__(self: Self, __protocol: int) -> tuple[Type[Self], tuple[bytes]]: ...
     def __hash__(self) -> int: ...
     def weekday(self) -> int: ...
     def isoweekday(self) -> int: ...
@@ -114,6 +121,11 @@ class time:
     def __ge__(self, other: time) -> bool: ...
     def __gt__(self, other: time) -> bool: ...
     def __hash__(self) -> int: ...
+    def __reduce__(self: Self) -> tuple[Type[Self], tuple[bytes]]: ...
+    if sys.version_info >= (3, 8):
+        def __reduce_ex__(self: Self, __protocol: SupportsIndex) -> tuple[Type[Self], tuple[bytes]]: ...
+    else:
+        def __reduce_ex__(self: Self, __protocol: int) -> tuple[Type[Self], tuple[bytes]]: ...
     def isoformat(self, timespec: str = ...) -> str: ...
     if sys.version_info >= (3, 7):
         @classmethod
@@ -183,6 +195,7 @@ class timedelta(SupportsAbs[timedelta]):
     def __gt__(self, other: timedelta) -> bool: ...
     def __bool__(self) -> bool: ...
     def __hash__(self) -> int: ...
+    def __reduce__(self: Self) -> tuple[Type[Self], tuple[int, int, int]]: ...
 
 class datetime(date):
     min: ClassVar[datetime]