Methods, systems, and computer program products are included for processing data structures to align timestamps of the data structures. An method includes receiving a first data structure from a first server that includes a first node corresponding to an activity, wherein the first node includes a first identifier, a first timestamp, and a first time duration corresponding to the activity. The method further includes receiving a second data structure from a second server, the second data structure including a second node corresponding to the activity, wherein the second node includes a second identifier and a second time duration corresponding to the activity. The method further includes creating a third data structure that includes at least a portion of the first data structure and at least a portion of the second data structure, the third data structure including an aligned timestamp corresponding to the activity.