Assigning a title to a digital image group is disclosed. A method includes receiving, by a computing device, a plurality of digital images associated with a user; extracting, by the computing device, time information from the plurality of digital images; clustering, by the computing device, the digital images into digital image groups based on the time information, where the digital image groups include the digital image group, and the digital image group corresponds to a first time information; identifying, by the computing device, a calendar entry in calendar data of the user, where the calendar entry having a second time information that is a common time period with the first time information; adding, by the computing device, a descriptor of the common time period in the title; and assigning, by the computing device, the title to the digital image group.