Carlson Wagonlit Travel released CWT 78 BizDays on Tuesday, a mobile app that helps planners determine the most convenient day and time to schedule an international call, videoconference, event or meeting. The app's name comes from research revealing that there are only 78 global holiday-free business days throughout the year. CWT developed the app with Michael Segalla, professor of management at France-based business school HEC Paris, who conducted the research into international and religious scheduling concerns. In addition to suggesting the best possible days and times to meet, the app allows planners to send meeting notifications to invitees. Additional country-specific information is offered within the app, including an explanation and background of global holidays. The free app is available for Apple iOS devices from the iTunes store, and also is available at www.cwt78bizdays.com.