34-Hour Reset Calculator (34-hour restart)
A live clock from right now: when your 60/70-hour cycle clears, and the earlier point where you are allowed to drive. Enter your cycle limit and hours used to see what the reset actually returns. Nothing is uploaded — it keeps running offline.
Two clocks, not one. You may drive again after
10 consecutive hours off duty. The
34-hour reset only clears the
60/70-hour weekly cycle. If you still have cycle hours left, you do not need a reset — use the
split sleeper calculator or the
recap calculator instead.
What the clock is counting
49 CFR 395.3(c): a property-carrying driver restarts the 60-hour/7-day or 70-hour/8-day calculation after 34 or more consecutive hours off duty. It is elapsed time, so a daylight-saving change does not shorten or lengthen it. Drivers say "reset", the regulation says "restart" — same thing.
| Mark | What it gets you |
|---|
| 10 consecutive hours off | An 11-hour driving limit and a fresh 14-hour window — this is what "I can drive again" means. |
| 34 consecutive hours off | The 60/70 cycle starts over at that point; hours before it stop counting. |
| Recap (no time off) | Older days roll out of the 7/8-day window on their own — slower than a reset. |
What counts, and what breaks it
| Counts toward the 34 | Breaks the 34 |
|---|
| Off duty, sleeper berth, or any mix of the two | Driving for any distance, even across a yard |
| Time at home, at a terminal, or parked anywhere | On-duty not driving: fueling, loading, paperwork, a scale ticket |
| Personal conveyance, if logged off duty | Any on-duty minute — the 34-hour clock starts over |
The old "two periods between 1 a.m. and 5 a.m." requirement is gone — suspended by Congress, removed by the 2020 hours-of-service rule. Ignore apps and blog posts that still plan around it.
What a reset does not do
- It does not add hours. It clears the cycle; nothing is banked for later.
- It does not run mid-shift. The whole 34 hours must be off duty.
- It is not for passenger-carrying drivers. The restart lives in 395.3, which covers property-carrying operations.
- Two in a row are legal but pointless — the second has nothing to clear.
FAQ
Is a 34-hour reset the same as a 34-hour restart?
Yes. Drivers say reset, the regulation in 49 CFR 395.3(c) says restart. Both mean 34 or more consecutive hours off duty, after which the 60-hour/7-day or 70-hour/8-day cycle starts over.
Can I drive after 34 hours, or earlier?
You can drive after 10 consecutive hours off duty. The 34-hour reset only clears the 60/70-hour weekly cycle; it is not the rule that permits driving.
Does the 34-hour reset have to include the two overnight periods?
No. The two-period requirement was suspended by Congress and removed by the 2020 hours-of-service rule. Today it is simply 34 consecutive hours off duty.
What breaks a 34-hour reset?
Any on-duty time, including on-duty not driving such as fueling, loading or paperwork. One on-duty minute restarts the 34-hour clock.