Yes, you need to change the timezone of the vps server.
Execute these commands in putty :
Bash:
rm /etc/localtime
cp /usr/share/zoneinfo/Asia/Calcutta /etc/localtime
date
I used
Asia/Calcutta timezone in above command, because my location is India. You need to give timezone as per your location.
To see the list of all available timezones :
Bash:
timedatectl list-timezones