I've done the following steps, just for your records:
- Rebooted the unit
- System time incorrect (January 1970)
- Manually synced system time to hardware clock, in order to get the internet connection through OpenVPN working
- Installed fake-hwclock package (current version is 0.9): apt-get install fake-hwclock
- Rebooted the unit
- System time incorrect (January 1970)
- Manually synced system time to hardware clock, in order to get the internet connection through OpenVPN working
- Synced system time and hardware clock using NTP
- Rebooted the unit
- System time correct after boot
- OpenVPN works