The IFAC annual 2024 Council- and Related meetings will take place in conjunction with the ECC 2024 (Stockholm, Sweden) https://ecc24.euca-ecc.org/
The TB will take place on June 24 (morning), the PB meeting on June 24 (afternoon), the CB meeting on June 25 (morning), and the Council meeting on June 26 (whole day).
The always latest meeting schedule you can download from here.