diff --git a/Lib/compileall.py b/Lib/compileall.py
@@ -138,8 +138,8 @@ def compile_file(fullname, ddir=None, force=False, rx=None, quiet=0,
        if tail == '.py':
            if not force:
                try:
-                    mtime = int(os.stat(fullname).st_mtime)
-                    expect = struct.pack('<4sll', importlib.util.MAGIC_NUMBER,
                                         0, mtime)
                    with open(cfile, 'rb') as chandle:
                        actual = chandle.read(12)

diff --git a/Lib/test/test_compileall.py b/Lib/test/test_compileall.py
@@ -53,8 +53,8 @@ def add_bad_source_file(self):
    def timestamp_metadata(self):
        with open(self.bc_path, 'rb') as file:
            data = file.read(12)
-        mtime = int(os.stat(self.source_path).st_mtime)
-        compare = struct.pack('<4sll', importlib.util.MAGIC_NUMBER, 0, mtime)
        return data, compare

    @unittest.skipUnless(hasattr(os, 'stat'), 'test needs os.stat()')
@@ -76,7 +76,7 @@ def recreation_check(self, metadata):

    def test_mtime(self):
        # Test a change in mtime leads to a new .pyc.
-        self.recreation_check(struct.pack('<4sll', importlib.util.MAGIC_NUMBER,
                                          0, 1))

    def test_magic_number(self):
@@ -195,14 +195,17 @@ def test_compile_missing_multiprocessing(self, compile_file_mock):
        compileall.compile_dir(self.directory, quiet=True, workers=5)
        self.assertTrue(compile_file_mock.called)


class CompileallTestsWithSourceEpoch(CompileallTestsBase,
                                     unittest.TestCase,
                                     metaclass=SourceDateEpochTestMeta,
                                     source_date_epoch=True):
    pass

-
class CompileallTestsWithoutSourceEpoch(CompileallTestsBase,
                                        unittest.TestCase,
                                        metaclass=SourceDateEpochTestMeta,

diff --git a/Tools/scripts/checkpyc.py b/Tools/scripts/checkpyc.py
@@ -54,7 +54,7 @@ def main():
                mtime = get_long(mtime_str)
                if mtime in {0, -1}:
                    print('Bad ".pyc" file', repr(name_c))
-                elif mtime != st[ST_MTIME]:
                    print('Out-of-date ".pyc" file', end=' ')
                    print(repr(name_c))