Duty time when on tacho

[Fun Bus]

I'm back driving for a short (I hope!) period of time and am rusty on duty hours. Driving, breaks, weekly and two-weekly totals I'm fine with, just the duty I need some clarity on.

11 hours is the maximum or 10 if a shift starts between midnight and 4:30(?) am. How can a driver do a 15 hour shift which I know is or was(?) possible. One hour duty when on a maximum of 10 seems sod all when loading and tipping which can easily be an hour each.

I've gone through the VOSA book but it doesn't make it very clear. Any simple explanations appreciated!

[Fun Bus]

Thanks for the link - I didn't manage to find that.

I've not, nor will I be studying for my drivers CPC - it's not worth the expense for something I only do occasionally. I'm usually an office dweller in the transport game, driving I do between permanent roles. Obviously it'll be van only from September for me.

[Fun Bus]

Spaceman, you're a legend - you've made clear my doubt! Thanks.