Your forecasts lag while data grows, hardware costs, and deadlines tighten. Traditional model training demands weeks of tuning and GPU burns time. Meanwhile, foundation models already understand seasonality, holiday spikes, and rare shocks. This book hands you TimeGPT, Chronos, and other pretrained powerhouses. Generate zero-shot forecasts or fine-tune quickly with only laptop resources. Deliver stronger predictions, faster insights, and measurable business value in days, not months.  * Model internals explained: Understand how large time models capture temporal patterns and uncertainty.  * Zero-shot workflow: Run instant forecasts on custom data without retraining, saving weeks of effort.  * Fine-tuning guides: Adapt foundation models to niche domains for even higher accuracy.  * Evaluation playbook: Benchmark probabilistic and point forecasts using industry-standard metrics.  * Laptop-friendly code: All examples rely on Python and CPUs, no high-end GPUs required.  Time Series