w3c/web-platform-tests — pull request #209 by MSakamaki (2013-06-08 19:55:06+00:00)
Title: Submissions/m sakamaki

I have the following modifications
to hide the input element
Initial value when empty(If no exception occurs)
Treated as a zero value, I will step up one minute from midnight (00:00)
It will be empty if irregular format of time.