Worked on the louislam/uptime-kuma repository to address a data integrity issue affecting uptime calculations. Focused on backend development using JavaScript, the work introduced a configurable parameter that controls the creation of missing time buckets during uptime cleanup. This approach prevents the automatic generation of missing buckets, thereby improving the accuracy of uptime metrics and simplifying data audits for monitoring customers. Comprehensive tests were added to validate the new behavior and ensure regression safety. By refining the handling of missing time buckets, the changes reduced data skew in dashboards and enhanced the reliability of uptime monitoring for end users.