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    $\begingroup$ The second snippet worked perfectly, Didn't know that I could round-off a datetime object. Thanks! $\endgroup$ Commented Nov 11, 2019 at 8:35
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    $\begingroup$ Is there a way to do this automatically for all columns using datetimes (without specifying them one by one), when doing read_excel()? $\endgroup$ Commented Mar 8, 2021 at 16:25
  • $\begingroup$ I don't know why, but when reading an xlsx file with pandas, some datetimes were off by a minute. So I had to use df.set_index(df.index.round(freq='h'), inplace=True), which seems really weird. I'd rather parse a CSV file and specify an explicit strftime format. $\endgroup$ Commented Jun 6, 2024 at 12:03