At weeknumber.com.au, we provide a simple, accurate, and free tool for calculating week numbers according to different international standards. Our goal is to make week number calculations accessible to everyone, whether you're planning projects, scheduling work, or managing financial reporting periods.
Proudly developed and operated in Australia
Founded in Queensland, Australia, RivalCommerce Pty Ltd was born from the recognition that accurate week number calculations are essential in our increasingly connected world. As an Australian company, we understand the unique challenges of working with different week numbering systems, especially in industries like finance, project management, and international trade.
Our team combines expertise in software engineering and date/time standards to deliver tools that meet the exacting standards required by professionals while remaining accessible to students, planners, and anyone needing reliable week calculations.
Our website supports multiple week numbering standards to meet diverse needs:
Week numbers are essential for project management, manufacturing schedules, financial reporting, and international coordination. Different industries and regions use different standards, which can lead to confusion. Our tool helps bridge this gap by providing clear, accurate calculations for any date.
Company Name
RivalCommerce Pty Ltd
Location
Queensland, Australia
Australian Business
Proudly Australian owned and operated
Time Zone
Australian Eastern Time (AEST)
Support Hours
Monday - Friday: 10:00 AM - 3:00 PM AEST
Response Time
Within 48 hours during business days
Trusted by professionals across Australia and internationally
Finance Industry
Project Managers
Educational Institutions
Research Organizations
Manufacturing Companies
International Trade
© 2026 RivalCommerce Pty Ltd. Australian Business Number (ACN: 645 693 198)