TT 2013 will feature the same race programme as this year.
There will be two sidecar races and the same solo classes - Superbike, Supersport, Superstock, Supertwin, Senior and TT Zero.
The decision to make no changes comes after organisers consulted with teams, competitors, manufacturers and fans.
The first practice session will be on Saturday, May 25 and Senior Race Day is Friday, June 7.
TT and Motorsport Development Manager Paul Phillips says everyone seems happy with the current timetable of races:
Commonwealth Games athletics squad in positive mood ahead of Glasgow
FC Isle of Man get pre-season underway with summer festival
Swimming: Oscar Maddrell becomes triple British champion
Football: Mixed results for IoM Women in summer series