FY Calendar is a Chrome add-on developed by WyattDave. It provides a Financial Year Calendar that is based on the first Sunday of February as the first day of the year. This add-on is designed to help users easily determine the weeks and periods of the financial year.

With FY Calendar, users can quickly access a calendar that displays the weeks and periods for the financial year. This can be especially useful for businesses and individuals who need to keep track of financial data and deadlines. The add-on is easy to install and integrates seamlessly into the Chrome browser.

Overall, FY Calendar is a handy tool for anyone who needs to stay organized and informed about the financial year. Its simple interface and accurate calculations make it a reliable resource for managing financial data.