A method, computer system, and a computer program product for sequential pattern mining is provided. The present invention may include receiving a data mining parameter. The present invention may also include computing a plurality of frequent sequences without temporal annotations based on the received parameters. The present invention may then include extracting a subsequence with temporal annotations for each frequent sequence based on the computed plurality of frequent sequences. The present invention may further include clustering a plurality of temporal intervals using a time window based on the extracted subsequence. The present invention may also include producing an output based on the cluster of plurality of temporal intervals.