Our holiday year runs 1 March - 28 February and the list starts circulating around September time, so we too can be booking up to 18 months in advance. If you don't make a selection, you risk being left with a very poor choice. Priority is based on seniority, so for the first 7 years of my career, I didn't get a holiday with my husband because he got 'shut-down' weeks (i.e. all the major holidays) and they always went first. It seems outrageous now - these days every effort is made to make sure everyone gets what they want - but I started working in 1980 and things were very different then. I was never allowed time off to attend my daughters' nativity plays, for example. The role I carry out now allows me to take off whatever time I want whenever I want, but that's not the case for all my colleagues.