#  Introduction   Time series data is everywhere — energy consumption logged hourly, transactions recorded to the millisecond, patient vitals tracked across hospital stays, inventory levels updated daily, and more. Analyzing, modeling, and forecasting this kind of data is one of the most in-demand skills across industries. What makes time series distinct from general data science is that it demands a different mental model at every stage. Temporal ordering, autocorrelation, seasonality, and non-stationarity are structural properties that don't exist in tabular data but define everything about how time series behave. The seven steps outlined in this article will help you learn and become proficient in time series analysis with Python. #  Step 1: Understanding What Makes Time Series Data Different   To get started, you need to understand the properties that make time series structurally different from tabular data.…