Irrigation work can be divided into work time in the fields and work time on the system itself. Work time in the fields includes leveling, cleaning of field ditches, repair of dikes, managing water levels in the field. System work includes work on the head works (dam or barrage), and the main canal, both of which have to be worked on at the beginning of the season, and many of which need attention during the cropping season. Part of the irrigation system work, then, is not in the field itself, and should be in the same category as commute time. There is a gap in our knowledge of how much time these activities take.