Matt W.

About Matt W.

Matt W. is a New Zealand legal professional who independently publishes and maintains Working Day Calculator NZ. The work focuses on the calculator's date-counting mechanics, checking cited official sources, and correcting reported errors. The articles provide general information and are not New Zealand legal, financial, employment, or other professional advice.

The first version was built for New Zealand, after finding that the available tools were “days between two dates” calculators — the easy direction, and the same in every country. The useful direction is the other one: given a trigger date and a set of rules, when does the deadline fall?

That question needs local rules, and New Zealand’s regional anniversary days, Mondayisation, and summer shutdown period don’t survive being generalised. The same gap turned out to exist in other common-law jurisdictions, so each country tool is built around its own rules rather than sharing one international default.

Articles by Matt W.

Guides and reference articles written for the New Zealand Working Day Calculator.

• 1 August 2026

  ADLS Summer Shutdown Dates and Other NZ Working-Day Exclusions

  Compare the six summer settings, their excluded dates and the agreements, statutes or court rules that use them.

  Legal · 7 min read
  
• 1 August 2026

  NZ Regional Anniversary Days: Which Calendar Should You Use?

  Choose the anniversary calendar required by the governing source, with separate guidance for employment, property, courts and the RMA.

  Public Holidays · 6 min read
  
• 1 August 2026

  Section 54 NZ: Do Start and End Dates Count?

  Words such as after, from, on and before determine whether a boundary date counts. Match the statutory wording to the two calculator controls.

  Legal · 4 min read
  
• 15 January 2026

  NZ Property Settlement: How to Count 10 Working Days

  Read the signed agreement for the trigger, boundary wording, property province and summer exclusion before calculating the date.

  Legal · 4 min read
  
• 7 January 2026

  RMA Working Days: How to Calculate Consent Deadlines

  An RMA count excludes 20 December to 10 January but not regional anniversary days. Apply that calendar after identifying the statutory period.

  Legal · 5 min read
  
• 30 December 2025

  NZ Employment Law: Working Days, Trial Periods and Notice

  Trial periods use calendar days. Notice follows the agreement. Public-holiday entitlements depend on the employee's normal work pattern.

  Legal · 5 min read
  
• 23 December 2025

  New Zealand Public Holidays 2026: Complete Guide

  The 2026 national and regional holiday dates, with the annual working-day totals you can check a calculation against.

  Public Holidays · 5 min read
  
• 16 December 2025

  NZ Mondayisation Rules: Which Holidays Move and Why

  Six holidays can transfer from a weekend. The observed weekday replaces rather than duplicates the holiday in a Monday-to-Friday count.

  Public Holidays · 5 min read