Ramadan in 2012 will start on Friday, the 20th of July

Ramadan in 2012 will start on Friday, the 20th of July and will continue for 30 days until Saturday, the 18th of August.

Based on sightability in North America, in 2012 Ramadan will start in North America a day later - on Saturday, the 21st of July.

Note that in the Muslim calander, a holiday begins on the sunset of the previous day, so observing Muslims will celebrate Ramadan on the sunset of Thursday, the 19th of July.

Although Ramadan is always on the same day of the Islamic calendar, the date on the Gregorian calendar varies from year to year, since the Gregorian calendar is a solar calendar and the Islamic calendar is a lunar calendar. This difference means Ramadan moves in the Gregorian calendar approximately 11 days every year. The date of Ramadan may also vary from country to country depending on whether the moon has been sighted or not.