The overall objective of this project is to bring European optical clocks to the stage where they regularly contribute to International Atomic Time via reporting to the International Bureau of Weights and Measures. The work necessary to achieve this has been structured into a series of work packages: WP1: Robust optical clocks with on-the-fly systematic shift correction WP2: International optical clock comparisons WP3: Incorporating optical clocks into UTC(k) timescales WP4: Optical clocks as secondary representations of the second WP5: Creating impact