The Annual Question: Bugs Caused by Week-Based Year Formatting in Java | HackerNoon
Briefly

When dealing with week numbering issues across different regions or cultures, standardization challenges often arise, with differing methods leading to ambiguities, particularly in programming.
Strict adherence to ISO 8601 standards is essential in date handling to avoid ambiguities, especially during transitions between years, as highlighted in Apache DolphinScheduler.
Java's date formatting since Java 8 supports ISO 8601, with case sensitivity in 'Y' for week-based year and 'y' for calendar year being a common oversight by developers.
Understanding week and week-based year calculations is crucial; the first and last weeks of a year are defined by the first and last Thursdays, which can shift depending on the year's calendar.
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