Statistics on the number of hours worked should include: hours actually worked during normal hours of work; time worked in addition to hours worked during normal periods of work, and generally paid at higher than normal rates (overtime); time spent at the place of work on work such as preparation of the work place, repairs and maintenance, preparation and cleaning of tools, and the preparation of receipts, time sheets and reports; time spent at the place of work waiting or standing by for such reasons as lack of supply of work, breakdown of machinery, or accidents, or time spent at the place of work during which no work is done but for which payment is made under a guaranteed employment contract; time corresponding to short rest periods at the work place, including tea and coffee breaks. Statistics of hours worked should exclude: hours paid for but not worked, such as paid annual leave, paid public holidays, paid sick leave; meal breaks; time spent on travel from home to work and vice versa