Contact us
Questions, corrections and calculator requests are all welcome. Email is the fastest way to reach us and we read every message.
What to include
A result looks wrong
Send the calculator name, the exact values you entered and the result you expected. Mention your country if week numbers, holidays or weekends are involved — conventions differ.
Request a calculator
Tell us the question you are trying to answer and how you would phrase it in a search box. Requests that people search for regularly get built first.
Using TimeQuick at work or school
You are welcome to use our calculators in lessons, documents and internal tools. A link back to the page you used is appreciated.
Press and partnerships
For coverage, data questions or partnership ideas, include a short outline and a deadline if you have one.
Before you write
Many questions are answered on the tools themselves — each calculator page includes an explanation of the method and five frequently asked questions. You may also find what you need in the full calculator directory or on the about page. Details on how we handle data are in our privacy policy.