"Although presumed impossible if not extremely difficult, we decided together to move the date. It made sense for Twitter and for NTT America to keep services active during this highly visible global event," he said.
State department spokesman Ian Kelly confirmed there were contacts with Twitter over the weekend, but strongly rejected that it amounted to meddling in Iranian internal affairs.
"This is about giving their voices a chance to be heard. One of the ways that their voices are heard are through new media," Mr Kelly said.
Mr Stone said "it's humbling to think that our two-year old company could be playing such a globally meaningful role that state (department) officials find their way toward highlighting our significance.
"However, it's important to note that the state department does not have access to our decision making process," he said.
I have been following some of the Iranian Tweeters as they tweet what's going on around them and what they are seeing and what they are doing. It seems important to just be there to read it. To be part of the reason they are communicating. To make sure that they are heard.
Sometimes it's a bit frightening and it does sort of make the rest of the crap people are tweeting kinda pathetic and mundane.
But I guess my point is this ... to all those who were "what is it? I don't need it? Who wants to read about you getting up to go get a sandwich?" about Twitter, I say this - sometimes you don't know the point of a new technology til someone figures out what it can be best used for. And sometimes, you really want to know that the person was able to get up and go across the room and get a sandwich.
To the Iranian protestors who can't read this because the Government is filtering all internet access - my thoughts and prayers go out to you. I'm praying that you will be safe and that your voices will be heard. And my heart is in my mouth every time I read your twitter updates - thank Gpd they are still coming!