title: Code to identify and write the missing timestamp for the missing hourly data in CSV with Python or R
body: <p>I have some experience using Python and R. The problem I am facing is that for the missing hourly data at the various stations, the timestamps are also missing. Due to the large size of the file (from 2017 to 2020), doing it manually would be very tedious. I am trying to write a code that will run through the CSV file, identify the missing time stamps for the missing data and insert the timestamps with NA or blank as the value. Can somebody help me with this? I have attached a sample picture of the original data and how I would want it to be. I would greatly appreciate any help.</p>
  <p><a href="https://i.stack.imgur.com/dnl4M.png" rel="nofollow noreferrer">Sample</a></p>