Answers for "unix date to date data frame"

pandas datetime to unix timestamp

dates = pd.to_datetime(['2019-01-15 13:30:00'])
(dates - pd.Timestamp("1970-01-01")) // pd.Timedelta('1s')  
# Int64Index([1547559000], dtype='int64')

from unix timestamp to datetime pandas

# convert unix timestamp to datetime UTC
df['datetime'] = df['_ts'].map(lambda x: pendulum.from_timestamp(x)) 
df = df.set_index('datetime')
# convert timezone from UTC to GMT+7
df.index = df.index.tz_convert('Asia/Bangkok')