diff --git a/app/models/p_hire.rb b/app/models/p_hire.rb
index 94dfee2..0b8b6f8 100644
--- a/app/models/p_hire.rb
+++ b/app/models/p_hire.rb
@@ -85,7 +85,7 @@ class PHire
     end
     events
   end
-  def convert_datetime(time)
+  def self.convert_datetime(time)
     if time.class == Time
       return time.to_datetime
     elsif time.class == DateTime