Samsung GT-P7300 - Manual (Page 100)

Tools
100
World clock
Learn to view the time in another region.
Open the application list and select
1
World clock.
Select
2
.
Enter a city name and select a city from the list.
3
You can select a city in the world map view.
Select
4
.
To add more world clocks, repeat steps 2-4.
5
To apply the summer time to the clocks, tap and hold a
clock and select DST settings.