Here are UPSC IAS exam schedule:

Prelim exam

Date of Notification: - 17.05.2014
Last Date for Applications: -
30.06.2014 (Monday)
Date of Commencement of Exam: -
24.08.2014 (Sunday)
Duration of Exam: -
1 Day

Main Exam
Date of Commencement of Exam: - 14.12.2014 (Sunday)

Last Date for Receipt of Applications: -
5 Days

Prelim exam syllabus:

Preliminary Paper I Syllabus
Current events of national and international importance.
History of India and Indian National Movement.
Economic and Social Development Sustainable Development, Poverty, Inclusion, Demographics, Social Sector initiatives, etc.
Indian and World Geography - Physical, Social, Economic Geography of India and the World.
Indian Polity and Governance - Constitution, Political System, Panchayati Raj, Public Policy, Rights Issues, etc.
General issues on Environmental Ecology, Bio-diversity and Climate Change
General Science.

Preliminary Paper II Syllabus
Comprehension
Logical reasoning and analytical ability
Decision-making and problem-solving
Interpersonal skills including communication skills;
Basic numeracy (numbers and their relations, orders of magnitude, etc.) (Class X level), Data interpretation (charts, graphs, tables, data sufficiency etc. - Class X level)
General mental ability
English Language Comprehension skills (Class X level).