HOS Infinity

You are correct.

 

There is NO LIMIT to number of hours you can WORK in a day. Did you mean Work (On-Duty, NOT Driving ODND ?) FMCSA allows you to WORK 24/7/365/100 years. You would just need a minimum of 10 hours Off-Duty/Sleeper before you could drive legally.

The limits are on DRIVING before you need some sort of rest/SLEEPER.

If your question means ODND & DRIVING then your formula will allow you to drive every day forever. In trucking it is very important to understand the word "work" at every other job means doing something for the job. In trucking work means non-driving jobs related. The HOS add driving AND WORK together when calculating the 14 Hour Clock & the 60 or 70 Hour Clock.

The FMCSA doesn't use a 24 Hour clock. They use 11 Hour Drive Clock, 10 Hour Off-Duty/SLEEPER Clock, and a 60 or 70 Hour in 7 or 8 day clock.

 

If you want to run on recap hours so you never have to do a 34, that is the way to do it.
But that 8.5 hours includes both on duty and drive time combined, because those are the hours that count against your 60 or 70 hour limit.
And those are averaged hours per day. If you only use 5 hours one day you could do 12 hours another day in that time period and still be OK.

 

...he meant legally

 

But, if you finesse that one day off each weekend, you would have your 34 hr reset and start each week with a fresh 60.

 

If you ran based on 70/8, you would be able to change up your hours slightly

 

The carrier usually decides if you run 60 hour in 7 days or 70 hours in 8 days.