Notice of periods of work sets out workplace hours, relay groups, and gender-wise employment details for formal exhibition. Form XII prescribes a notice of periods of work for an establishment under the labour rules. It records the establishment's name, place and district, and requires particulars of periods of work for groups and relays, separately for men and women, along with the description of groups, nature of work, remarks, and totals of men and women employed. The notice also provides for entry of working hours on working days and partial working days, the date of first exhibition, the employer's signature, and the date.