access time

noun2

1. •
   The time interval between the issuing of a request to read data from or write data to a storage device and the completion of this action.

   • Random access files have a fast access time, but they cannot easily produce sequential lists. — 1986
2. •
   An item of metadata indicating when a file was last accessed.

   • It is difficult to monitor both the access time and the change time, because monitoring the file attributes resets the access time […] — 2005