UbuntuMATE 15.10 comes with “systemd” by default, and you can easily set the clock as described with the post UbuntuMATE 15.10 resetting date & time during boot without having a RTC chip.
Give it a try, it works using the described “2nd approach” 
UbuntuMATE 15.10 comes with “systemd” by default, and you can easily set the clock as described with the post UbuntuMATE 15.10 resetting date & time during boot without having a RTC chip.
Give it a try, it works using the described “2nd approach”