A nucleic acid sequencing method involving contacting a spatially defined target nucleic acid sequence with N labeled oligonucleotide probes and performing measurements, at least at the spatially defined site (1), at M time instances during ligation or hybridization to form M data sets. The M data sets are co-processed in order to identify a label or absence of any label at the spatially defined site (1). A sequenced based of the target nucleic acid sequence is then determined based on the identified label of the identified absence of any label. The time-resolved measurements conducted during the actual hybridization of the oligonucleotide probes to the target nucleic acid sequence or the ligation of oligonucleotide probes to anchor probes on the target nucleic acid sequence improves the speed and accuracy of the sequencing as compared to the state of the art sequencing methods.