How to set Time zone manually in Samsung Galaxy Grand2(SM-G7102)?

a). Tap on Apps icon as shown below.

b). Now, Tap on Settings icon then tap on General as shown below.

c). Now tap on Date and time option as shown below.

d). Now, tap on Select time zone as shown below.

e). Tap on the time zone (for example: Kolkata GMT+5:30) from the list and the selected time zone will be activated.