Sam Reed
Sam Reed
I just had to cancel a print... Within 30 minutes of turning the mini on, the clock had seemingly drifted ~2 minutes
Taken at 16:58 according to my phones time  Taken at 17:32 according to my phones time 
Comparatively... After a ~5H print... It was only still about 2 minutes out... I guess if the display displayed the current time (at the top, like a phone/tablet?) the drift...
#1322 file to display the time on the device, to make it more obvious to see what's going on.. #648 would also help "fix" this in a different way too
It doesn't seem any better on 4.4.1... 4 ish minute drift after a 90 minute print... 
Another print today. 3-4 minute drift over a less than 2 hour print..
It's one thing the calculation of the time to finish the print being wrong, it's another the clock drifting so much over a short period. If it's right at startup,...
Still valid.
And on 6.1.2...
I have mine plugged in via Ethernet ;)