World clock --> Scheduler

This app can help you make your flight schedule(departure and arrival are usually a different time zones), or plan events in local time or an international tele-conferencing.

Feature
- World clock for event (start time and end time), Add calendar entries
- Calculating a time difference, Add(Sub) time to clock time
- Enter an event with start time and end time of the different time zones. ex) Flight schedule
- Enter the Date&time by 10 keys, Slide pad and by weekly calendar
- Easily handle the hours in the middle of the night. ex) 25:00