Similar to the Intra-Clock Paths section, the Inter-Clock Paths section of the Timing Summary Report (shown in the following figure) summarizes the worst slack and total violations of the timing paths between different source and destination clocks.
Figure 1. Timing Summary Report Inter-Clock Paths Details
To view detailed information, click the names under Inter-Clock Paths in the left
index pane. For example, you can view the slack and violations summary for each clock
and details about the N-worst paths for SETUP/HOLD/Pulse Width checks. The N-worst is
defined using the -max_paths on the command line or the
maximum number of paths per clock or path group (GUI).