No, Point clouds, e.g. pointcloud.ply, do not have timestamp information
For general point cloud formats, there's no field for saving the timestamp information. Additionally, it is difficult to save the exact timestamp for a specific point as it could have been captured multiple times when scanning back and forth.
A Point Cloud is as a collection of data points in space that typically represent the external surface of an object or environment. Point clouds are used in various applications, including 3D scanning and mapping, and can be visualized and manipulated using Navvis IVION. You can perform actions such as panning, orbiting, cleaning up noise, cropping, and downloading data in formats like .e57 or .ply. The resolution of point clouds processed with NavVis Software achieves a minimum detail of 5mm, indicating the precision of the spatial data points.