Please follow the below steps to change the time/timezone of Airwave from CLI.
Login to CLI to Airwave as root and run the below commands.
# cd install
this will change the directory to Install.
# ./ time-setup
once we run this command, we would see a menu ( as shown below) and following the onscreen steps would help in changing the time and time zone.
NOTE: Its recommended to use a NTP for time and not update/change it manually. Also NTP does not syncs the Time Zone and we would have to use the above steps to change the Time Zone.