Primary sources come first for requirements
When timing is controlled by a manufacturer, contract, law, code, government process or regulated procedure, the primary source for that specific situation is more authoritative than a generic article. Product technical data, official public-agency material and project documents should therefore be checked directly.
General planning references
The site’s planning concepts draw on widely used operations and project-management ideas such as work breakdown, dependencies, lead time, cycle time, queues, capacity, contingency and learning from actual performance. These concepts are explained in plain language rather than tied to one proprietary methodology.
Advertising and privacy references
- Google AdSense: required privacy-policy content
- Google AdSense: how AdSense uses cookies
- Google consent-management requirements for EEA, UK and Switzerland
- Google AdSense: personalized and non-personalized ads
Product-specific timing
For paints, coatings, adhesives, sealants, repair products and similar materials, use the current label and technical documentation for the exact product, substrate and environmental conditions. We intentionally do not maintain a generic table of drying or curing times because doing so could obscure product-specific requirements.
Local calendars and legal periods
Public holidays, business-day definitions, filing deadlines and formal notice periods vary. The Working Days Calculator is a generic Monday-to-Friday tool only. Check the authority, contract or policy that defines the actual deadline.