diff --git a/test/results/2chen.py b/test/results/2chen.py
index 589053fa..132f75d7 100644
--- a/test/results/2chen.py
+++ b/test/results/2chen.py
@@ -6,7 +6,6 @@
 
 gallery_dl = __import__("gallery_dl.extractor.2chen")
 _2chen = getattr(gallery_dl.extractor, "2chen")
-import datetime
 
 
 __tests__ = (
@@ -18,7 +17,7 @@ __tests__ = (
     "#count"   : ">= 179",
 
     "board" : "tv",
-    "date"  : datetime.datetime,
+    "date"  : "type:datetime",
     "hash"  : r"re:[0-9a-f]{40}",
     "name"  : "Anonymous",
     "no"    : r"re:\d+",
diff --git a/test/results/4archive.py b/test/results/4archive.py
index cebec6fc..f907577f 100644
--- a/test/results/4archive.py
+++ b/test/results/4archive.py
@@ -6,7 +6,6 @@
 
 gallery_dl = __import__("gallery_dl.extractor.4archive")
 _4archive = getattr(gallery_dl.extractor, "4archive")
-import datetime
 
 
 __tests__ = (
@@ -19,7 +18,7 @@ __tests__ = (
 
     "board" : "u",
     "com"   : str,
-    "date"  : datetime.datetime,
+    "date"  : "type:datetime",
     "name"  : "Anonymous",
     "no"    : range(2397221, 2418158),
     "thread": 2397221,
diff --git a/test/results/deviantart.py b/test/results/deviantart.py
index c3a6c537..ee911e99 100644
--- a/test/results/deviantart.py
+++ b/test/results/deviantart.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import deviantart
-import datetime
 from gallery_dl import exception
 
 
@@ -60,7 +59,7 @@ __tests__ = (
         "transparency": bool,
         "width"       : int,
     },
-    "date"            : datetime.datetime,
+    "date"            : "type:datetime",
     "deviationid"     : str,
     "?download_filesize": int,
     "extension"       : str,
diff --git a/test/results/facebook.py b/test/results/facebook.py
index 7eda027d..64f49690 100644
--- a/test/results/facebook.py
+++ b/test/results/facebook.py
@@ -6,7 +6,6 @@
 
 from gallery_dl.extractor import facebook
 from gallery_dl import exception
-import datetime
 
 
 __tests__ = (
@@ -191,7 +190,7 @@ __tests__ = (
     "#count"   : 1,
 
     "caption"  : "They were on a break... #FriendsReunion #MoreTogether",
-    "date"     : datetime.datetime(2021, 5, 27, 21, 55, 19),
+    "date"     : "dt:2021-05-27 21:55:19",
     "filename" : "191053255_10160743390471729_9001965649022744000_n",
     "extension": "jpg",
     "id"       : "10160743390456729",
@@ -212,7 +211,7 @@ __tests__ = (
     "#count"   : 1,
 
     "caption"  : "",
-    "date"     : datetime.datetime(2014, 5, 3, 0, 44, 47),
+    "date"     : "dt:2014-05-03 00:44:47",
     "filename" : str,
     "extension": "png",
     "id"       : "10152716011076729",
@@ -272,7 +271,7 @@ __tests__ = (
     "#class"   : facebook.FacebookVideoExtractor,
     "#count"   : 1,
 
-    "date"     : datetime.datetime(2024, 4, 19, 17, 25, 48),
+    "date"     : "dt:2024-04-19 17:25:48",
     "filename" : str,
     "id"       : "1165557851291824",
     "url"      : str,
diff --git a/test/results/hentaifoundry.py b/test/results/hentaifoundry.py
index 6da50035..65aaafcf 100644
--- a/test/results/hentaifoundry.py
+++ b/test/results/hentaifoundry.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import hentaifoundry
-import datetime
 
 
 __tests__ = (
@@ -190,7 +189,7 @@ Sorry for the bad quality, I made it on after effect because Flash works like sh
     "author"     : "SnowWolf35",
     "chapters"   : int,
     "comments"   : int,
-    "date"       : datetime.datetime,
+    "date"       : "type:datetime",
     "description": str,
     "index"      : int,
     "rating"     : int,
diff --git a/test/results/horne.py b/test/results/horne.py
index 6d2a0b49..418e656b 100644
--- a/test/results/horne.py
+++ b/test/results/horne.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import nijie
-import datetime
 
 
 __tests__ = (
@@ -29,7 +28,7 @@ __tests__ = (
 
     "artist_id"  : 58000,
     "artist_name": "のえるわ",
-    "date"       : datetime.datetime,
+    "date"       : "type:datetime",
     "description": str,
     "image_id"   : int,
     "num"        : int,
diff --git a/test/results/imgur.py b/test/results/imgur.py
index bd99245f..8d6cf3ae 100644
--- a/test/results/imgur.py
+++ b/test/results/imgur.py
@@ -6,7 +6,6 @@
 
 from gallery_dl.extractor import imgur
 from gallery_dl import exception
-import datetime
 
 
 __tests__ = (
@@ -215,7 +214,7 @@ __tests__ = (
     },
     "account_id" : 0,
     "count"      : 19,
-    "date"       : datetime.datetime,
+    "date"       : "type:datetime",
     "description": "",
     "ext"        : "jpg",
     "has_sound"  : False,
diff --git a/test/results/inkbunny.py b/test/results/inkbunny.py
index 4e05da7c..78885f59 100644
--- a/test/results/inkbunny.py
+++ b/test/results/inkbunny.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import inkbunny
-import datetime
 
 
 __tests__ = (
@@ -16,7 +15,7 @@ __tests__ = (
     "#pattern" : r"https://[\w.]+\.metapix\.net/files/full/\d+/\d+_soina_.+",
     "#range"   : "20-50",
 
-    "date"           : datetime.datetime,
+    "date"           : "type:datetime",
     "deleted"        : bool,
     "file_id"        : r"re:[0-9]+",
     "filename"       : r"re:[0-9]+_soina_\w+",
diff --git a/test/results/luscious.py b/test/results/luscious.py
index 597b5699..32626485 100644
--- a/test/results/luscious.py
+++ b/test/results/luscious.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import luscious
-import datetime
 from gallery_dl import exception
 
 
@@ -49,7 +48,7 @@ __tests__ = (
     "aspect_ratio"    : r"re:\d+:\d+",
     "category"        : "luscious",
     "created"         : int,
-    "date"            : datetime.datetime,
+    "date"            : "type:datetime",
     "height"          : int,
     "id"              : int,
     "is_animated"     : False,
diff --git a/test/results/mangadex.py b/test/results/mangadex.py
index 5309db13..5fdd7150 100644
--- a/test/results/mangadex.py
+++ b/test/results/mangadex.py
@@ -6,7 +6,6 @@
 
 from gallery_dl.extractor import mangadex
 from gallery_dl import exception
-import datetime
 
 
 __tests__ = (
@@ -132,7 +131,7 @@ __tests__ = (
     "chapter"      : 0,
     "chapter_minor": "",
     "chapter_id"   : str,
-    "date"         : datetime.datetime,
+    "date"         : "type:datetime",
     "lang"         : "iso:lang",
     "artist"       : ["Arakawa Hiromu"],
     "author"       : ["Arakawa Hiromu"],
diff --git a/test/results/mangafox.py b/test/results/mangafox.py
index dc0cc9a0..04651496 100644
--- a/test/results/mangafox.py
+++ b/test/results/mangafox.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import mangafox
-import datetime
 
 
 __tests__ = (
@@ -40,7 +39,7 @@ __tests__ = (
     "chapter"       : int,
     "chapter_minor" : r"re:^(\.\d+)?$",
     "chapter_string": r"re:(v\d+/)?c\d+",
-    "date"          : datetime.datetime,
+    "date"          : "type:datetime",
     "description"   : "High school boy Naoya gets a confession from Momi, a cute and friendly girl. However, Naoya already has a girlfriend, Seki... but Momi is too good a catch to let go. Momi and Nagoya's goal becomes clear: convince Seki to accept being an item with the two of them. Will she budge?",
     "lang"          : "en",
     "language"      : "English",
diff --git a/test/results/mangapark.py b/test/results/mangapark.py
index b40ab3fc..2ad5d426 100644
--- a/test/results/mangapark.py
+++ b/test/results/mangapark.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import mangapark
-import datetime
 
 
 __tests__ = (
@@ -115,7 +114,7 @@ __tests__ = (
     "chapter"      : int,
     "chapter_id"   : r"re:\d+",
     "chapter_minor": str,
-    "date"         : datetime.datetime,
+    "date"         : "type:datetime",
     "lang"         : "en",
     "language"     : "English",
     "manga_id"     : 114972,
diff --git a/test/results/nijie.py b/test/results/nijie.py
index 4e06f871..b5a53fb1 100644
--- a/test/results/nijie.py
+++ b/test/results/nijie.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import nijie
-import datetime
 from gallery_dl import exception
 
 
@@ -32,7 +31,7 @@ __tests__ = (
     "artist_id"  : 44,
     "artist_name": "ED",
     "count"      : 1,
-    "date"       : datetime.datetime,
+    "date"       : "type:datetime",
     "description": str,
     "extension"  : "jpg",
     "filename"   : str,
diff --git a/test/results/patreon.py b/test/results/patreon.py
index f2aeee8b..426981de 100644
--- a/test/results/patreon.py
+++ b/test/results/patreon.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import patreon
-import datetime
 from gallery_dl import exception
 
 
@@ -21,7 +20,7 @@ __tests__ = (
     "comment_count": int,
     "content"      : str,
     "creator"      : dict,
-    "date"         : datetime.datetime,
+    "date"         : "type:datetime",
     "id"           : int,
     "images"       : list,
     "like_count"   : int,
diff --git a/test/results/photovogue.py b/test/results/photovogue.py
index 6898f5d9..187c374a 100644
--- a/test/results/photovogue.py
+++ b/test/results/photovogue.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import photovogue
-import datetime
 
 
 __tests__ = (
@@ -21,7 +20,7 @@ __tests__ = (
     "#class"   : photovogue.PhotovogueUserExtractor,
     "#pattern" : "https://images.vogue.it/Photovogue/[^/]+_gallery.jpg",
 
-    "date"           : datetime.datetime,
+    "date"           : "type:datetime",
     "favorite_count" : int,
     "favorited"      : list,
     "id"             : int,
diff --git a/test/results/picarto.py b/test/results/picarto.py
index 07456260..5d2af21f 100644
--- a/test/results/picarto.py
+++ b/test/results/picarto.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import picarto
-import datetime
 
 
 __tests__ = (
@@ -16,7 +15,7 @@ __tests__ = (
     "#pattern" : r"https://images\.picarto\.tv/gallery/\d/\d\d/\d+/artwork/[0-9a-f-]+/large-[0-9a-f]+\.(jpg|png|gif)",
     "#count"   : ">= 7",
 
-    "date": datetime.datetime,
+    "date": "type:datetime",
 },
 
 )
diff --git a/test/results/pillowfort.py b/test/results/pillowfort.py
index 514697be..fc583614 100644
--- a/test/results/pillowfort.py
+++ b/test/results/pillowfort.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import pillowfort
-import datetime
 
 
 __tests__ = (
@@ -24,7 +23,7 @@ __tests__ = (
     "content"         : str,
     "count"           : 4,
     "created_at"      : str,
-    "date"            : datetime.datetime,
+    "date"            : "type:datetime",
     "deleted"         : None,
     "deleted_at"      : None,
     "deleted_by_mod"  : None,
diff --git a/test/results/pixeldrain.py b/test/results/pixeldrain.py
index 1afc49b9..563634a0 100644
--- a/test/results/pixeldrain.py
+++ b/test/results/pixeldrain.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import pixeldrain
-import datetime
 
 __tests__ = (
 {
@@ -81,7 +80,7 @@ __tests__ = (
         "success"     : True,
         "title"       : "アルバム",
     },
-    "date"       : datetime.datetime,
+    "date"       : "type:datetime",
     "description": "",
     "detail_href": r"re:/file/(yEK1n2Qc|jW9E6s4h)/info",
     "hash_sha256": r"re:\w{64}",
diff --git a/test/results/subscribestar.py b/test/results/subscribestar.py
index 94850ac3..a8c7146a 100644
--- a/test/results/subscribestar.py
+++ b/test/results/subscribestar.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import subscribestar
-import datetime
 
 
 __tests__ = (
@@ -20,7 +19,7 @@ __tests__ = (
     "author_name": "subscribestar",
     "author_nick": "SubscribeStar",
     "content"    : str,
-    "date"       : datetime.datetime,
+    "date"       : "type:datetime",
     "id"         : int,
     "num"        : int,
     "post_id"    : int,
@@ -38,7 +37,7 @@ __tests__ = (
     "#options" : {"metadata": True},
     "#range"   : "1",
 
-    "date": datetime.datetime,
+    "date": "type:datetime",
 },
 
 {
diff --git a/test/results/toyhouse.py b/test/results/toyhouse.py
index 21d13ee1..46d61954 100644
--- a/test/results/toyhouse.py
+++ b/test/results/toyhouse.py
@@ -5,7 +5,6 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import toyhouse
-import datetime
 
 
 __tests__ = (
@@ -19,7 +18,7 @@ __tests__ = (
 
     "artists"   : list,
     "characters": list,
-    "date"      : datetime.datetime,
+    "date"      : "type:datetime",
     "hash"      : r"re:\w+",
     "id"        : r"re:\d+",
     "url"       : str,