who's right?

So me and my colleague both finished our last night this morning Mon-thu and I’ve been driving for nearly 2 years and he’s been driving well over 25 years.
I was ahead of him by 30 mins on our run back and when he got back to the yard he said what you still doing here you have done 4 15’s now (I had done 12 hrs 15 mins at this point) but I’m sure im right and he’s wrong but ill let you be the judge of that. (Don’t like telling a old time driver that basically your wrong and I’m right)

my hours -
Mon - 15:30 - 05:30 - 14 hours = 1 reduced rest
Tue - 15:30 - 05:15 - 13:45 hours = 2 reduced rest
Wed - 15:30 - 06:30 - 15 hours = 3 reduced rests
Thu - 15:30 - 03:45 - 12 hours 15

Now as far as I’m aware is if I got back and finished at 04:30 he would be right but this all looks legal to me. He is adamant that as soon as that tacho goes over 12 hours it’s now considered a 15 but I’m sure its 13 hours. 11 - 24 = 13 hours

without any split rest I could do 3’15’s and 3 13’s in total that week bringing it to 84 hours? (as long as it doesn’t go over 60 hours of work, just need a lot of breaks to do this)

Thanks all

You 3 reduced and that’s it , don’t pass go don’t collect £200

Sent from my iPad using Tapatalk

I concur = 3 reduced

Jonny17291:
He is adamant that as soon as that tacho goes over 12 hours it’s now considered a 15 but I’m sure its 13 hours. 11 - 24 = 13 hours

You are right, he is wrong. Any 24hr tacho period where you are on duty in excess of 13hrs (excepting the aforementioned split rest period of at least 3hrs continuous during that shift) is automatically a reduced rest period.
The old hands can be the worst when it comes to interpretation of the rules, I’ve personally witnessed one arguing with a CPC instructor till he was blue in the face that you could legally exceed a 15hr shift with use of POA as it freezes the clock in his words

Used to be 12 hour working until they changed it round about 1979 fish

you could have done another 15 if you had a 3 hour undisturbed rest

But you have done 3 reduced rest