January 1st 2012 = 1433
November 15 2012 = 1434
small chance of one day error
12th of February 2012 will be 19th Rabi' al-Awwal 1433 in the Islamic calendar. However it should be noted that the Islamic calendar is a lunar calendar and the exact dates will change year to year.
The majority of 2012 is 1433 in the Islamic Calender, although the Islamic New year starts before the Gregorian new year, so it will be 1434 before 2013 starts.
It is 28 Shawal (the tenth month in the Islamic calendar) year 1433 AH.
It became year one in the Islamic calendar
To see the Islamic calendar for 1976 simply go to http://www.timeanddate.com/calendar/?year=1976.
The term "synchronize" is unclear. The Islamic Calendar has a year of only 354 days, so it can never be the same length as a solar year (usually calculated with the Gregorian Calendar with an average of years length of 365.24 days). However, the date on the Islamic Calendar and on the Gregorian Calendar will correlate every 34 Islamic Calendar Years which correspond to 33 Gregorian Calendar Years.
1384
1430(ah)
This was in year 622 AD and marked the first year in Islamic (or Hijra) Lunar Calendar.
In the Islamic calendar, it was the year 11 A.H. In the Christian calendar, it was the year 632 A.D.
It is 9 of Jumada althani, 6th month of Islamic lunar calendar
They each have twelve months but the Islamic calendar has 354 days in a year. Very little else is similar as the Islamic calendar is a lunar calendar.