diff --git a/labs02/task02.py b/labs02/task02.py
index a6d6321..2bcf28b 100644
--- a/labs02/task02.py
+++ b/labs02/task02.py
@@ -6,7 +6,12 @@
 """
 
 def days_in_year(days):
-    pass
+    if ((days % 4) == 0 and ((days % 100) != 0)) or ((days % 400) == 0):
+        dni=366
+    else:
+        dni=365
+
+    return dni
 
 def tests(f):
     inputs = [[2015], [2012], [1900], [2400], [1977]]