Edit the /system/etc/gps.conf file. The NTP server information is the part that you need to edit, to reflect NTP servers that are the nearest to you. As I am in the UK, I am using the uk.pool.ntp.org servers.
You will need to find out which are closest to your region, you can find out here http://www.pool.ntp.org/zone/
for europe use :
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//source - http://forum.xda-developers.com/showthread.php?t=939385
NTP_SERVER=europe.pool.ntp.org
//dont touch xtra_servers
xtra_server_1=http://xtra1.gpsonextra.net/xtra.bin
xtra_server_2=http://xtra2.gpsonextra.net/xtra.bin
xtra_server_3=http://xtra3.gpsonextra.net/xtra.bin
SUPL_HOST=supl.google.com
SUPL_PORT=7276
How to flash modem only
#gps #android
origin - http://www.pipiscrew.com/?p=6037 android-rooted-users-modify-gps-ntp-servers