This dataset presents internationally comparable data on instruction time in full-time compulsory education. It covers primary and (lower and upper) secondary general education, but excludes pre-primary education, even if compulsory. Total number of instruction hours is available by level of education.
OECD-INES NESLI 2022 Subnational Data Collection
For more information see
Etienne ALBISER (etienne.albiser@oecd.org)
12 September 2023
Further detail as to the methodology used during the data collection for each indicator, the references to the sources and the specific notes for each country are available in:
School year
Data should refer to the school year Y-1/Y (for example 2022/23) or in the case of Southern Hemisphere countries, Y (2023).
The most recent reference year is 2023.
Detailed presentation and explanation of the ISCED 2011 classification is available in :
Key statistical concepts, definitions and methodologies underlying the indicators are available in the:
This dataset presents internationally comparable data on instruction time in full-time compulsory education. It covers primary and (lower and upper) secondary general education, but excludes pre-primary education, even if compulsory. Total number of instruction hours is available by level of education.
OECD-INES NESLI 2022 Subnational Data Collection
For more information see
School year
Data should refer to the school year Y-1/Y (for example 2022/23) or in the case of Southern Hemisphere countries, Y (2023).
The most recent reference year is 2023.
12 September 2023
Etienne ALBISER (etienne.albiser@oecd.org)
Further detail as to the methodology used during the data collection for each indicator, the references to the sources and the specific notes for each country are available in:
Key statistical concepts, definitions and methodologies underlying the indicators are available in the:
Detailed presentation and explanation of the ISCED 2011 classification is available in :
are included in: