Answers for "Convert the date index to datetime using pandas's to_datetime()."

pandas index to datetime

import pandas as pd
df = pd.Dataframe(data)
df.index = pd.DatetimeIndex(data=df.index, tz='US/Eastern') # naive--> aware
df.index = pd.DatetimeIndex(df.index.tz_convert('US/Pacific')) # aware--> aware
df

convert datetime to date pandas

[dt.to_datetime().date() for dt in df.dates]