A "Network Time Protocol Daemon" (nptd for short) can sync the system clock with internet standard time servers. The `chrony` daemon is used as ntpd. Install it by:
```
# xbps-install -Sy chrony
```
Then to active its service:
```
ln -s /etc/sv/chronyd /var/service
```
To configure the timezone edit the `/etc/rc.conf` file.
```
HARDWARECLOCK="localtime"
```
And symlink the correct timezone to `/etc/localtime`: