If you are referring to season 25, Survivor Philippines, it premiered on Wednesday, September 19th, 2012.
The fall season of Survivor 2012 premiered on Wednesday, September 19th, 2012. The spring season of Survivor's premiere date has yet to be established.
Survivor: Samoa, the 19th season of Survivor, started on Thursday, September 17th, 2009 and ran through December 20th, 2009.
The fall season of Survivor, known as Survivor Nicaragua, premiered on September 15th, 2010 and ran through December 19th, 2010. Jud "Fabio" Birza was named the sole survivor of the season in a 5-4 victory over Chase Rice.
Survivor: South Pacific the 23rd season of Survivor, will premiere in September 2011.
Survivor: South Pacific, the twenty-third season of Survivor is expected to air on Wednesday, September 14th, 2011. The 19th season of The Amazing Race will air on Sunday, September 25th, 2011.
Survivor Philippines premiered on Wednesday, September 19th, 2012.
The latest season of Survivor premiered on Wednesday, February 16, 2011.
Survivor: Caramoan premiered on February 13th, 2013.
Survivor: Nicaragua will be the 21st season. It aired from September 15th, 2010 through December 19th, 2010.
Every season varies. Usually, the season finale is in the middle of December. However, if you are referring to season 21, Survivor: Nicaragua, the final episode premiered on December 19th, 2010.
Survivor: South Pacific will premiere on Wednesday, September 14th, 2011.