GT 900 User Manual (Quick)
Please insert memory card onto your PC. And, open dedicated PC viewer.
Select right time zone and time at system section in setting. Please save it when you close viewer.
Once all that is done, please insert your memory card back to camera and start it again.
The setting is done in few second as your configuration.
It is different system depends on the manufacture.
Samsung : My file → Internal storage → DCIM → GNET
LG : File management → All files (or Internal storage → DCIM → GNET
I-phone : Camera roll
If you can not find the files, Search for “DCIM” folder on your smartphone