[Dumyat]

@Dumyat https://github.com/xbmc/xbmc/issues/15572

The issue with timer duration appears to in the PVR code and not the addon so I created the issue above.

Ah, Ok. Thanks for the update. Well, at least I wasn't going totally mad then 
I think the issue may not be confined to just timer items. There is maybe a broader problem with duration times generally for PVR items, since I'm still experiencing some wrong durations on my guide screen. Here's an example of a programme scheduled to broadcast tonight:- 



Note the duration time at the top of screen is saying 1Hr for a 2Hr programme. I checked the same item on my STB and that is showing a duration of 120mins, which is obviously correct. I tried changing the guide data providers to EIT on my STB as you had previously recommended, but was still experiencing the issue. It's quite odd behaviour and seems to occur quite randomly. I've also observed that whilst this programme is showing the wrong duration right now, the nearer you get to the actual broadcast time it will sometimes correct itself. What's really weird and rather annoying is when you pull up the context menu and go to programme info, that is showing the correct duration:-

 

Whilst the stock version of Estuary does not actually show the programme duration on the guide screen, I bet if somebody tested it, exactly the same thing would happen. The programme info screen on that skin is also showing the correct duration, so I'm pretty sure the problem is not with my skin mod.

UPDATE:
Just checked my guide screen again and same item is now displaying duration correctly. Approx 60mins between the first and second images being created. Yup, very odd behaviour indeed:-