transcriptionally active and inactive chromatin domains tend to segregate into separate sub nuclear compartments to maintain stable expression patterns however here we uncovered an inter chromosomal network connecting active loci enriched in circadian genes to repressed lamina associated domains lads the interactome is regulated by parp1 and its co factor ctcf they not only mediate chromatin fiber interactions but also promote the recruitment of circadian genes to the lamina synchronization of the circadian rhythm by serum shock induces oscillations in parp1 ctcf interactions which is accompanied by oscillating recruitment of circadian loci to the lamina followed by the acquisition of repressive h3k9me2 marks and transcriptional attenuation furthermore depletion of h3k9me2 3 inhibition of parp activity by olaparib or downregulation of parp1 or ctcf expression counteracts both recruitment to the envelope and circadian transcription parp1 and ctcf regulated contacts between circadian loci and the repressive chromatin environment at the lamina therefore mediate circadian transcriptional plasticity.