The temporal nature of some health care outcomes is well established. Studies in a range of countries and covering different specialities, have suggested that mortality in hospital settings fluctuates between different times of the week. Specifically, mortality has been shown to increase outside of office hours, such as the weekend and evening, compared to during office hours. Freemantle et al. (2012), using 2009/10 data on admission to English NHS hospitals, found that weekend admission was associated with an increased risk of death within 30 days of admission, while Aylin et al. (2010) calculated from 2005/06 data, that those who had weekend emergency admissions to English hospitals had a 10 per cent higher risk of death compared to those who were admitted during the week. Although there is some evidence challenging the notion of the so called 'weekend effect' (Baldwin et al., 2018; Daugaard et al., 2012), data from Canada (Bell and Redelmeier, 2001), Spain (Barba et al., 2006), Taiwan (Huang et al., 2016) and the United States (Kent et al., 2016) all point to outcomes, as measured by mortality, being worse during weekends compared to during the week. Analysis by Peberdy et al.