Go4Time will target the realization of a generic miniature timing module relying on the combination of an integrated circuit together with different MEMS resonators assembled hermetically in a single package. One of the main system feature is a temperature compensated low power real time clock mode with a power consumption below 1µW and a very tight frequency stability better than +-2ppm over an industrial temperature range. Owing to its combination with a higher frequency resonator and PLL techniques, the accurate reference is used to provide on-demand, a reconfigurable low jitter clock of high spectal purity at any frequency below 50MHz that could serve as a reference frequency for communication systems such as Bluetooth, GSM or wireless sensor networks.The project achievements will strengthen the global competitiveness of European industries in microsystems and smart miniaturised systems in the 3B$ timing market. The power aware scheme that is proposed will help meeting the green electronic challenge in consumer products and strengthen the competitiveness of the user industries by providing a generic solution with a much reduced bill of material.