  Time crystalline structures can be created in periodically driven systems.
They are temporal lattices which can reveal different condensed matter
behaviours ranging from Anderson localization in time to temporal analogues of
many-body localization or topological insulators. However, the potential
practical applications of time crystalline structures have yet to be explored.
Here, we pave the way for time-tronics where temporal lattices are like printed
circuit boards for realization of a broad range of quantum devices. The
elements of these devices can correspond to structures of dimensions higher
than three and can be arbitrarily connected and reconfigured at any moment.
Moreover, our approach allows for the construction of a quantum computer,
enabling quantum gate operations for all possible pairs of qubits. Our findings
indicate that the limitations faced in building devices using conventional
spatial crystals can be overcome by adopting crystalline structures in time.
