python-pandasHow to convert timestamp to datetime

Usage example

import pandas as pd

df = pd.DataFrame({
  'timestamp': ['1655977822', '1655977821', '1655977803'],
  'value': [1,2,3]
})

df['date'] = pd.to_datetime(df['timestamp'], unit='s')

print(df)

output

    timestamp  value                date
0  1655977822      1 2022-06-23 09:50:22
1  1655977821      2 2022-06-23 09:50:21
2  1655977803      3 2022-06-23 09:50:03