The Client application can change the general system date and time, date and time format, date and time separator with the help of Common Date and Time View API. It can also set clock type, network-time, clock alarm tone, home city, snooze time, workdays. Common Date and Time View API is also used for viewing, adding or deleting a city to the list of cities.
There is one use case of Common Date and Time View API:
Figure 1: Class diagram of the Common Date and Time View API