diff --git a/spec/tags/ruby/core/time/new_tags.txt b/spec/tags/ruby/core/time/new_tags.txt
index 31d1d00c9bd..0b3fc052987 100644
--- a/spec/tags/ruby/core/time/new_tags.txt
+++ b/spec/tags/ruby/core/time/new_tags.txt
@@ -7,3 +7,4 @@ fails(not implemented, jruby/jruby#6161):Time.new with a timezone argument Time-
 fails(not implemented, jruby/jruby#6161):Time.new with a timezone argument #name method uses the optional #name method for marshaling
 fails(not implemented, jruby/jruby#6161):Time.new with a timezone argument #name method cannot marshal Time if #name method isn't implemented
 fails(not implemented, jruby/jruby#6161):Time.new with a timezone argument subject's class implements .find_timezone method calls .find_timezone to build a time object at loading marshaled data
+fails(only during full spec run):Time.new with a utc_offset argument raises ArgumentError if the String argument is not of the form (+|-)HH:MM