8/2 and 7/3 Splits, Worked Hour by Hour
Four days drivers actually live. Each one shows the timeline, the recalculation anchor, and what's left in the tank afterward.
1 · The classic 8/2 — parked early, finishing at night
6:00 AM on duty · 6 h driving + 1 h loading · 1:00–3:00 PM off duty (2 h, 1st break) · 5 h driving · 8:00 PM–4:00 AM sleeper berth (8 h, 2nd break)
Valid 8/2. Anchor at 3:00 PM (end of first break). On-duty between breaks: 5 h → window left at 4:00 AM: 9 h, driving must end by 3:00 PM + 14 + 8 = 1:00 PM. Driving: 6 + 5 = 11 used → 0 h left. You're parked on window, not wheels — a full 10-hour reset before the next drive.
2 · The shipper-delay 7/3 — turning a 3-hour wait into qualifying rest
7:00 AM on duty · 3 h driving · arrive shipper 10:00 AM, trailer not ready · 10:00 AM–1:00 PM off duty (3 h, 1st break) · 1 h loading · 4 h driving · 8:00 PM–3:00 AM sleeper berth (7 h, 2nd break)
Valid 7/3. Anchor at 1:00 PM. On-duty between: 5 h → window left at 3:00 AM: 9 h, deadline 1:00 PM + 14 + 7 = 7:00 AM next day. Driving: 3 + 4 = 7 → 4 h left. Without the split, sitting at that dock would have burned your window to nothing by 9:00 PM.
3 · Long break first — the appointment-day pattern
9:00 PM–4:00 AM sleeper berth (7 h, 1st break) · 7:00 AM on duty · 2 h driving + 1 h at receiver · delivery window 10:00 AM–2:00 PM · 12:00–3:00 PM off duty (3 h, 2nd break)
Valid. Anchor at 4:00 AM. On-duty between: 3 h → window left at 3:00 PM: 11 h, deadline 4:00 AM + 14 + 3 = 9:00 PM. Driving used: 2 h → 9 h left. You deliver, rest 3 hours mid-afternoon, and still own most of a day.
4 · The near-miss 7/2.5 — the pairing that quietly fails
6:00 AM on duty · 5 h driving · 11:00 AM–1:30 PM off duty (2.5 h) · 4 h driving · 5:30 PM–12:30 AM sleeper berth (7 h)
Not valid. The two breaks total 9.5 hours — half an hour short. Both breaks count back into the window as ordinary off-duty, your original 14-hour window stands, and by 12:30 AM you're 20 hours past your 6:00 AM start: no driving left, window gone. Add 30 minutes anywhere and the same day becomes a legal 7/3.
The deadline moves with the order of your breaks even though legality doesn't. Whichever break comes
first sets the anchor — run both orders through the
calculator before you commit to one.