diff --git a/pandas-stubs/_libs/tslibs/timestamps.pyi b/pandas-stubs/_libs/tslibs/timestamps.pyi
index 970f8980..6952082e 100644
--- a/pandas-stubs/_libs/tslibs/timestamps.pyi
+++ b/pandas-stubs/_libs/tslibs/timestamps.pyi
@@ -301,3 +301,6 @@ class Timestamp(datetime):
     def days_in_month(self) -> int: ...
     @property
     def daysinmonth(self) -> int: ...
+    @property
+    def unit(self) -> str: ...
+    def as_unit(self, unit: str, round_ok: bool = ...) -> Timestamp: ...
diff --git a/tests/test_scalars.py b/tests/test_scalars.py
index af74019b..7f401ba1 100644
--- a/tests/test_scalars.py
+++ b/tests/test_scalars.py
@@ -1160,6 +1160,7 @@ def test_timestamp_properties() -> None:
     check(assert_type(ts.dayofyear, int), int)
     check(assert_type(ts.days_in_month, int), int)
     check(assert_type(ts.daysinmonth, int), int)
+    check(assert_type(ts.unit, str), str)
     check(assert_type(ts.is_leap_year, bool), bool)
     check(assert_type(ts.is_month_end, bool), bool)
     check(assert_type(ts.is_month_start, bool), bool)
@@ -1530,6 +1531,8 @@ def test_timestamp_misc_methods() -> None:
         pd.Timestamp,
     )
 
+    check(assert_type(ts2.as_unit('ns'), pd.Timestamp), pd.Timestamp)
+
     check(assert_type(ts2.round("1s"), pd.Timestamp), pd.Timestamp)
     check(assert_type(ts2.round("1s", ambiguous="raise"), pd.Timestamp), pd.Timestamp)
     check(assert_type(ts2.round("1s", ambiguous=True), pd.Timestamp), pd.Timestamp)