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BUG: Fix subtraction with timezone Series #12302

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BUG: Fix subtraction with timezone Series #12302

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4 changes: 2 additions & 2 deletions pandas/core/ops.py
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Original file line number Diff line number Diff line change
Expand Up @@ -487,9 +487,9 @@ def _offset(lvalues, rvalues):

# with tz, convert to UTC
if self.is_datetime64tz_lhs:
lvalues = lvalues.tz_localize(None)
lvalues = lvalues.tz_convert('UTC')
if self.is_datetime64tz_rhs:
rvalues = rvalues.tz_localize(None)
rvalues = rvalues.tz_convert('UTC')

lvalues = lvalues.view(np.int64)
rvalues = rvalues.view(np.int64)
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15 changes: 15 additions & 0 deletions pandas/tests/series/test_operators.py
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Expand Up @@ -1375,3 +1375,18 @@ def test_datetime64_with_index(self):
df['expected'] = df['date'] - df.index.to_series()
df['result'] = df['date'] - df.index
assert_series_equal(df['result'], df['expected'], check_names=False)

# See gh-12290
def test_datetime64_single_non_native(self):
f = Series([pd.Timestamp('2016-02-08 13:43:14.605000',
tz='America/Sao_Paulo')])
s = Series([pd.Timestamp('2016-02-10 13:43:14.605000',
tz='America/Sao_Paulo')])

out = f - s
expected = Series(pd.Timedelta('-2days'))
assert_series_equal(out, expected)

out = s - f
expected = Series(pd.Timedelta('2days'))
assert_series_equal(out, expected)