Transcription repressor involved in the circadian clock (PubMed:26124104). Binds to the promoter region of target genes to repress their transcription (e.g. PRR5 and GI) (PubMed:26124104). Regulates the timing of floral scent, by restricting the expression of ODO1 and other floral volatile benzenoids and phenylpropanoids (FVBP) pathway genes (e.g. EPSPS and IGS1) to the evening (PubMed:26124104). This scent, mostly produced in the evening and night by the petals, attracts the pollinators (e.g. the night-active hawkmoth pollinator Manduca sexta) (PubMed:26124104). Binds to and repress ODO1 and FVBP genes (e.g. EPSPS and IGS1) promoters via cis-regulatory evening elements (PubMed:26124104). Homodimer. Circadian-regulation with peak levels occurring in the morning. Early production of scent at the end of the light period, associated with an early peak expression during the day of floral volatile benzenoids and phenylpropanoids (FVBP) pathway genes responsible for volatile precursor synthesis (e.g. EOBI, EOBII, ODO1, EPSPS, CM1, ADT, and PAL).