回答編集履歴
1
表現を修正
answer
CHANGED
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@@ -17,7 +17,7 @@
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17
17
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print(df)
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18
18
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19
19
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df['time'] = pd.to_datetime(df['time'])
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20
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-
df.loc[df['summer'] == 'EST', 'time'] =
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20
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+
df.loc[df['summer'] == 'EST', 'time'] += timedelta(hours=-1)
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21
21
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df['time'] = df['time'].astype(str)
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22
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print(df)
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