Net Working Days & Operational Timeline Extraction

In project tracking and corporate fulfillment operations, calculating raw calendar days is insufficient. This operational engine isolates true **Business Workdays** by dynamically filtering out standard weekends (Saturdays and Sundays) alongside an optional, fully customizable matrix of national or bank holidays.

Methodology: The script executes a deterministic step-loop across the specified date range. For every transient day, it checks the JavaScript day index. If the index evaluates to 0 (Sunday) or 6 (Saturday), it is pushed to the weekend bucket. If it matches your custom holiday array, it is pruned, rendering an exact calculation of actionable project execution time.