There are occasions (like a few minutes ago for me) when the clock will display one minute for 2 minutes straight and jump to the next, skipping a minute. Is this a bug being solved by Apple? It is very annoying and I can imagine it may actually be dangerous in some situations.
Not sure if this is related to the problem described but, I and others get:
CoreTime-<date> 'bugtime 156' errors every day since upgrading to iOS 8.2.
Check Settings>Privacy>Diagnostic & Usage>Diagnostic & Usage> error list to see if you get the same every day.
Have shared with developers to highlight the issue.
Just wish that once this info has been submitted to developers that it would disappear from my iphone.
[Edit] Phone not jailbroken and neither are the others I have checked.