Time.now -> Time.current

app/models/user.rb

@@ -69,7 +69,7 @@ class User < ActiveRecord::Base
       oauth_email: oauth_email,
       password: Devise.friendly_token[0,20],
       terms_of_service: '1',
-      confirmed_at: oauth_email_confirmed ? DateTime.now : nil
+      confirmed_at: oauth_email_confirmed ? DateTime.current : nil
     )
   end
 
@@ -158,7 +158,7 @@ class User < ActiveRecord::Base
 
   def erase(erase_reason = nil)
     self.update(
-      erased_at: Time.now,
+      erased_at: Time.current,
       erase_reason: erase_reason,
       username: nil,
       email: nil,
@@ -258,4 +258,4 @@ class User < ActiveRecord::Base
       validator.validate(self)
     end
 
-end
+end