Ummmm let's see. It's just after 8am on the East Coast. So, minus four hours. Just after 4am on Saturday March 13th, I believe? Tomorrow is daylight savings time, so we'll spring ahead 1 hr which will complicate the conversion a little further for you.
No, in the US, the federal government issues a date for the time change. But, its actually up to the local government whether or not the area follows the change. There are serveral places that don't observe daylight saving at all within the United States.
For us, daylight saving time begins this Sunday, March 14th.