diff --git a/gallery_dl/extractor/common.py b/gallery_dl/extractor/common.py
index 183fdc63..80cffc13 100644
--- a/gallery_dl/extractor/common.py
+++ b/gallery_dl/extractor/common.py
@@ -13,6 +13,7 @@ import time
 import netrc
 import queue
 import logging
+import datetime
 import requests
 import threading
 import http.cookiejar
@@ -217,6 +218,20 @@ class Extractor():
             return False
         return True
 
+    def _get_date_min_max(self, dmin=None, dmax=None):
+        """Retrieve and parse 'date-min' and 'date-max' config values"""
+        def get(key, default):
+            ts = self.config(key, default)
+            if isinstance(ts, str):
+                try:
+                    ts = int(datetime.datetime.strptime(ts, fmt).timestamp())
+                except ValueError as exc:
+                    self.log.warning("Unable to parse '%s': %s", key, exc)
+                    ts = default
+            return ts
+        fmt = self.config("date-format", "%Y-%m-%dT%H:%M:%S")
+        return get("date-min", dmin), get("date-max", dmax)
+
     @classmethod
     def _get_tests(cls):
         """Yield an extractor's test cases as (URL, RESULTS) tuples"""
diff --git a/gallery_dl/extractor/reddit.py b/gallery_dl/extractor/reddit.py
index f27ad2e7..2ba4b99a 100644
--- a/gallery_dl/extractor/reddit.py
+++ b/gallery_dl/extractor/reddit.py
@@ -11,7 +11,6 @@
 from .common import Extractor, Message
 from .. import text, util, extractor, exception
 from ..cache import cache
-import datetime
 import time
 
 
@@ -251,12 +250,9 @@ class RedditAPI():
         return data
 
     def _pagination(self, endpoint, params, _empty=()):
-        date_fmt = self.extractor.config("date-format", "%Y-%m-%dT%H:%M:%S")
-        date_min = self._parse_datetime("date-min", 0, date_fmt)
-        date_max = self._parse_datetime("date-max", 253402210800, date_fmt)
-
         id_min = self._parse_id("id-min", 0)
         id_max = self._parse_id("id-max", 2147483647)
+        date_min, date_max = self.extractor._get_date_min_max(0, 253402210800)
 
         while True:
             data = self._call(endpoint, params)["data"]
@@ -293,16 +289,6 @@ class RedditAPI():
         if link_id and extra:
             yield from self.morechildren(link_id, extra)
 
-    def _parse_datetime(self, key, default, fmt):
-        ts = self.extractor.config(key, default)
-        if isinstance(ts, str):
-            try:
-                ts = int(datetime.datetime.strptime(ts, fmt).timestamp())
-            except ValueError as exc:
-                self.log.warning("Unable to parse '%s': %s", key, exc)
-                ts = default
-        return ts
-
     def _parse_id(self, key, default):
         sid = self.extractor.config(key)
         return self._decode(sid.rpartition("_")[2].lower()) if sid else default