Date Rule Chain Planner

Worked example

Starting January 1 and adding 10 calendar days reaches January 11. Following that with a roll-to-business-day-forward step checks whether January 11 is already an open weekday under the stated workweek, and if it is, as it happens to be here, the step leaves the date unchanged, since rolling forward only ever moves a date that actually falls on a closed day. Each step in a chain always starts from the result of the step before it, never from the original start date, which is exactly why the receipt shows every intermediate result rather than only the final one, so it is clear which specific step produced which specific date.

Common mistakes

• Assuming every step applies to the original start date independently. They chain sequentially instead, each one building on the previous result.
• Putting a roll-to-business-day step before the additions that are actually meant to determine the target date, which can produce a different final answer than intended depending on the order chosen.

Limitations

This applies exactly the rule steps you build, in the order you build them. It does not infer an intended order from a written contract or policy document, and the chain is capped at 20 steps to keep the result easy to review in full.