How to predict value in every 120 minutes using LSTM in python
if you want to predict exactly at a particular timestamp, &amp; you do not want to train the model again and again then may be you can run a crontab on a python file to load the model and predict the value, with cron job starting at 6 AM &amp; execute again at every 120 minutes

Even if you have a stream of data coming continuously you can re-train the model in between those 120 minutes.