Worked on the neetozone/neeto-ui repository to enhance the reliability of DateTime utilities, focusing on timezone-aware rendering. Addressed a bug in the getTimezoneAppliedDateTime function by implementing robust null and empty input handling, ensuring that missing or invalid inputDateTime values now return null instead of causing runtime exceptions. This defensive programming approach in JavaScript improved the stability of core UI utility functions and reduced the risk of crashes in production environments. By refining utility functions and emphasizing null-checks, the work contributed to smoother localization and timezone flows, ultimately supporting more reliable date and time processing across client applications.