Shift schedule - a convenient and simple calendar that allows you to calculate and view work shifts. Graph Functions: * Customize your schedule * Ability to mark vacation and sick leave * Displays the number of working days and weekends per month * Displays the number of working hours per month * Ability to add new shifts * Ability to set color shift * Week number display * Widgets for a month and a week * Ability to create an unlimited number of graphs and compare them * Backup and restore *