diff --git a/README.md b/README.md
index d87a5a4..70e5c8c 100755
--- a/README.md
+++ b/README.md
@@ -4,4 +4,5 @@ Classifies images by their EXIF date (e.g. /path/YYYY.MM.DD/image.jpg).
 
 = Install
 
+apt install exiv2 cmake libexiv2-dev  libboost-python-dev
 python3 setup.py install
diff --git a/image_classifier/image_classifier.py b/image_classifier/image_classifier.py
index f8dbb15..603ca57 100755
--- a/image_classifier/image_classifier.py
+++ b/image_classifier/image_classifier.py
@@ -17,6 +17,7 @@ from logging.handlers import SysLogHandler
 import face_recognition
 import pyexiv2
 import PIL
+import datetime
 
 
 class CustomFormatter(logging.Formatter):
@@ -49,7 +50,7 @@ class CustomFormatter(logging.Formatter):
 class image_classifier:
 
     def __init__(self, debug_level, log_file, faces_directory, directory, no_move,
-                 people_folder, recursive):
+                 people_folder, recursive, folder_date_format):
         ''' Initial function called when object is created '''
         self.debug_level = debug_level
         if log_file is None:
@@ -66,6 +67,7 @@ class image_classifier:
         self.no_move = no_move
         self.people_folder = people_folder
         self.recursive = recursive
+        self.folder_date_format = folder_date_format
 
         if self.recursive:
             entries = self.recursive_scandir(directory)
@@ -122,32 +124,32 @@ class image_classifier:
         if not os.access(file, os.R_OK):
             self._log.error(f"The file '{file}' is not readable.")
         else:
-            file_date = "unknown-time"
             if self.is_image(file):
                 if 'Exif.Photo.DateTimeOriginal' in self.metadata.exif_keys:
                     original_date = self.metadata['Exif.Photo.DateTimeOriginal'].value
-                    self._log.debug(f"File creation time: {original_date} \
+                    self._log.debug(f"File creation time in EXIF: {original_date} \
 (type: {type(original_date)})")
                     try:
-                        file_date = original_date.strftime('%Y.%m.%d')
+                        #file_date = original_date.strftime('%Y/%Y.%m.%d')
+                        file_date = original_date
                     except Exception as error:
                         self._log.error(f"Failed to convert EXIF information about date '{original_date}'.")
-                        file_date = 'unknown-time'
-            if file_date == 'unknown-time':
+                        file_date = None
+            if file_date is None:
                 self._log.debug('Date not stored in EXIF metadata')
                 match = re.search(
                     r'(?P<year>20[0-9]{2})[\-/\._]?(?P<month>[0-1]?[0-9])[\-/\._]?(?P<day>[0-3]?[0-9])',
                     filename
                 )
                 if match:
-                    file_date = f"{match.group('year')}.{match.group('month')}.\
-{match.group('day')}"
+                    file_date = datetime.strptime(f"{match.group('year')}.{match.group('month')}.\
+{match.group('day')}", '%Y.%m.%d')
                 else:
                     match = re.search(r'(?P<day>[0-3]?[0-9])[\-/\._]?\
 (?P<month>[0-1]?[0-9])[\-/\._]?(?P<year>20[0-9]{2})', filename)
                     if match:
-                        file_date = f"{match.group('year')}.{match.group('month')}.\
-{match.group('day')}"
+                        file_date = datetime.strptime(f"{match.group('year')}.{match.group('month')}.\
+{match.group('day')}", '%Y.%m.%d')
                     else:
                         self._log.warning(f"Date not found in file's name '{filename}'.")
             else:
@@ -166,7 +168,8 @@ class image_classifier:
         people = list()
         if self.is_image(file):
             self.process_metadata(file)
-        folder_date = self.get_file_date(file)
+        folder_date_time = self.get_file_date(file)
+        folder_date = folder_date_time.strftime(self.folder_date_format)
         if folder_date:
             if self.is_image(file):
                 people = self.find_faces(file)
@@ -340,11 +343,12 @@ identify people. Filename would be used as the name for the person. Just one per
 pictures to each person's folder. Be sure to have deduplication in the filesystem to avoid using \
 too much storage.")
 @click.option('--recursive', '-r', is_flag=True, help='Recursively search for files in the provided --directory')
+@click.option('--folder-date-format', '-F', default='%Y/%Y.%m.%d', help='Format for the folder with the file date according to https://docs.python.org/3/library/datetime.html#strftime-strptime-behavior')
 @click_config_file.configuration_option()
 def __main__(debug_level, log_file, faces_directory, directory, no_move,
-             people_folder, recursive):
+             people_folder, recursive, folder_date_format):
     return image_classifier(debug_level, log_file, faces_directory, directory, no_move,
-                            people_folder, recursive)
+                            people_folder, recursive, folder_date_format)
 
 
 if __name__ == "__main__":