Karthikey Hegde enhanced the juspay/scylla-rust-driver by adding robust support for handling CQL timestamp types with Rust’s PrimitiveDateTime. He implemented the FromCqlVal and SerializeValue traits to enable accurate serialization and deserialization between Rust and ScyllaDB, ensuring data correctness and interoperability. Leveraging Rust and CQL, he introduced deserialization for time-03 offset types using a macro-based approach for OffsetDateTime, which streamlined type conversion and improved maintainability. Comprehensive unit tests were developed to cover various timestamp scenarios, providing regression protection. The work demonstrated depth in data serialization, type conversion, and database integration, resulting in stronger test coverage and reliability.