BUG: Fix .dt.microsecond accessor for pyarrow-backed Series

Author: Aloqeely

pandas/core/arrays/arrow/array.py

@@ -2794,7 +2794,10 @@ def _dt_days_in_month(self) -> Self:
 
     @property
     def _dt_microsecond(self) -> Self:
-        return type(self)(pc.microsecond(self._pa_array))
+        # GH 59154
+        us = pc.microsecond(self._pa_array)
+        ms_to_us = pc.multiply(pc.millisecond(self._pa_array), 1000)
+        return type(self)(pc.add(us, ms_to_us))
 
     @property
     def _dt_minute(self) -> Self:

pandas/tests/extension/test_arrow.py

@@ -2437,13 +2437,13 @@ def test_unsupported_dt(data):
         ["hour", 3],
         ["minute", 4],
         ["is_leap_year", False],
-        ["microsecond", 5],
+        ["microsecond", 2000],
         ["month", 1],
         ["nanosecond", 6],
         ["quarter", 1],
         ["second", 7],
         ["date", date(2023, 1, 2)],
-        ["time", time(3, 4, 7, 5)],
+        ["time", time(3, 4, 7, 2000)],
     ],
 )
 def test_dt_properties(prop, expected):
@@ -2456,7 +2456,7 @@ def test_dt_properties(prop, expected):
                 hour=3,
                 minute=4,
                 second=7,
-                microsecond=5,
+                microsecond=2000,
                 nanosecond=6,
             ),
             None,