# Kafka Connect TimestampNowField SMT Usage Reference for Confluent Cloud The `TimestampNowField` Single Message Transformation (SMT) is used to add a new field to the Kafka Connect record key or value, populating that field with the system timestamp at the moment the record is processed by the connector. #### IMPORTANT Confluent only supports this SMT on Confluent Cloud. For complete details, see the official [TimestampNowField SMT](https://jcustenborder.github.io/kafka-connect-documentation/projects/kafka-connect-transform-common/transformations/TimestampNowField.html) documentation.