Shiftcalendar for people working shift both onshore and offshore world wide.
Default setting are for offshore personnel in Norway, but it can be used for all kinds of shifts. Select the date when you want to start generate your working period, put in the name you want on the calendar, select which year you want to generate, and press generate in the bottom. If you work another shift / rotation, simply "add shift" and put in how many days you are working followed by days off, and generate calendar.
When calendar is generated, use "share" function in top right corner to save to camera roll, e-mail, or share on Facebook with friends and family.