Add a date to filenames in bulk
Auto Date can insert a file date as a prefix or suffix using a consistent format.
Dates guides
Apply modified, created and photo date information to file names.
Quick answer: Determine which timestamp is meaningful before adding it to filenames. The file system and EXIF metadata may disagree.
Task-by-task guides
Rename files using date modified
Use the file's last-modified timestamp when a content update should determine its output filename.
Rename photos by EXIF date taken
Use embedded camera date metadata for photo sequences rather than filesystem copy dates.
Add creation dates to file names
Bulk Rename Utility can use a filesystem creation-date field to label batches imported on Windows.
Add date and time to filenames
A timestamp suffix can reduce naming collisions when exporting repeated batches.
Reformat dates already written in filenames
Use regex groups to rearrange an existing filename date string without changing the file metadata.
Group photo names by year and month
Add year-month date text to a filename so media archives sort naturally.