n70 n72 ... how to set my current city

my friend had gone to the UK for sometime and there he had somehow changed the city to London and timezone to GMT.

whn back in mumbai even if the auto update time is on his timezone remains the same and timezone shows as GMT+0...thus screwing his world clock.
he can set the time as per IST though the timezone shows as GMT+0.

following is the instruction given in the manual of n70 and n72

World clock

Open Clock, and press rt. key to open the world clock view.

In the world clock view, you can view the time in different cities.

To add cities to the list, select Options > Add city. Enter
the first letters of the city name. The search field appears

automatically, and the matching cities are displayed.
Select a city. You can add a maximum of 15 cities to the list.

Your Nokia N70

To set your current city, scroll to a city, and select
Options > My current city. The city is displayed in the
clock main view, and the time in your device is changed
according to the city selected. Check that the time is
correct and matches your time zone.

his is a n70 and mine is a n72 ... both of us cant find the option My current city under world clock.

plz help

in N72 go to clock in menu >press right key >options
here you will see My Current city
you cannot see it there go to setting > date and time >here disable auto time update
then restart the phone you will find my current city tab, you can then enable auto time update

thanks for ur help