How many days from June 1 to dec 31 2012?

From June 1 to December 31, 2012, there are 214 days. June has 30 days, so there are 30 - 1 = 29 days remaining in June. Then, adding the full months of July (31), August (31), September (30), October (31), November (30), and December (31) gives a total of 214 days.