diff --git a/fixedcal/core/date.py b/fixedcal/core/date.py
index a5a37de..f432492 100644
--- a/fixedcal/core/date.py
+++ b/fixedcal/core/date.py
@@ -1,7 +1,6 @@
 """Module containing class for IFC date"""
 
-import datetime # as dt
-# from datetime import date, datetime, timedelta
+import datetime
 from fixedcal.services.leap_days import is_leap_year,\
     gregorian_leap_days_between, fixed_leap_days_between
 
@@ -206,7 +205,7 @@ class FixedDate:
         Does not modify either one of the values.
 
         Args:
-            o (Union[FixedDate, timedelta]): The value that will be added.
+            o (Union[FixedDate, datetime.timedelta]): The value that will be added.
 
         Raises:
             ValueError: Given argument was not FixedDate nor timedelta.
diff --git a/fixedcal/services/leap_days.py b/fixedcal/services/leap_days.py
index a807be9..2e2f0d2 100644
--- a/fixedcal/services/leap_days.py
+++ b/fixedcal/services/leap_days.py
@@ -1,4 +1,3 @@
-# from datetime import datetime, timedelta
 import datetime
 
 def is_leap_year(year: int) -> bool:
@@ -11,8 +10,8 @@ def gregorian_leap_days_between(date1: datetime.date, date2: datetime.date) -> i
     Count includes both ends (date1 and date2 themselves).
 
     Args:
-        date1 (datetime): The beginning of the count
-        date2 (datetime): The end of the count
+        date1 (datetime.date): The beginning of the count
+        date2 (datetime.date): The end of the count
 
     Returns:
         int: Count of the leap days.
diff --git a/tests/basic_datetime_test.py b/tests/basic_datetime_test.py
index 23b1e79..0954922 100644
--- a/tests/basic_datetime_test.py
+++ b/tests/basic_datetime_test.py
@@ -1,5 +1,4 @@
 import unittest
-# from datetime import datetime
 import datetime
 from fixedcal.core.date import FixedDate
 
diff --git a/tests/leap_year_test.py b/tests/leap_year_test.py
index cc39d81..c7a2941 100644
--- a/tests/leap_year_test.py
+++ b/tests/leap_year_test.py
@@ -1,5 +1,4 @@
 import unittest
-# from datetime import datetime, timedelta
 import datetime
 from fixedcal import FixedDate
 
diff --git a/tests/operations_test.py b/tests/operations_test.py
index 048010e..46142fb 100644
--- a/tests/operations_test.py
+++ b/tests/operations_test.py
@@ -1,5 +1,4 @@
 import unittest
-# from datetime import datetime, timedelta
 import datetime
 from fixedcal.core.date import FixedDate
 
diff --git a/tests/string_repr_test.py b/tests/string_repr_test.py
index 744e6d4..314a869 100644
--- a/tests/string_repr_test.py
+++ b/tests/string_repr_test.py
@@ -1,5 +1,4 @@
 import unittest
-# from datetime import datetime
 import datetime
 from fixedcal import FixedDate