A method of placing a clock signal supply network in a design representation for an integrated circuit. The design representation may comprise a plurality of clockable circuit cells. The method may comprise identifying a first of the clockable circuit cells in the design representation. The method may further comprise identifying a second of the clockable circuit cells in the design representation. The second clockable circuit cell may have a clock timing dependent relation relative to the first clockable circuit cell. The method may further comprise configuring the clock signal supply network. The clock signal supply network may be configured to supply respective clock signals to the first and said second clockable circuit cells. The clock signal supply network may be configured to route the respective clock signals such that a timing difference between the respective clock signals is protected from process, voltage and temperature (PVT) influences.