Folder Timestamp Synchronizer scans directory trees on Linux and updates each folder's last-modified timestamp (mtime) to match the newest or oldest file inside it. A lightweight Linux alternative to FolderTimeUpdate for restoring accurate folder dates after backups, file migrations, archive extractions, or version-control operations.

Key features:

• Flexible Timestamp Target Modes: Synchronize folders to the newest recursive child file, newest immediate child file, or oldest recursive child file with configurable glob exclusions.
• Dry-Run Diff Preview Table: Inspect scanned file counts, reference child file paths, current folder mtime, target child mtime, and exact time delta before modifying any directory.
• Atomic Bottom-Up Updates & Undo Rollback Journal: Applies nanosecond-accurate os.utime() updates bottom-up from deepest subdirectories first and records a 1-click Undo Rollback Journal.
• Drift Telemetry & Reports: Visualizes directory timestamp drift distributions across trees and exports full audit reports to CSV and JSON formats.

Disclaimer: This project is an independent open-source tool and is not affiliated with, sponsored by, or endorsed by NirSoft.