How Does Recap Hours Work: 70 Hour 8 Day Recap Calculator

Recap Hours Explained (Simple Guide for Truck Drivers)

What Are Recap Hours? (Plain English)

Recap hours let truck drivers get driving time back day by day instead of stopping for a full 34-hour reset.

If you’re running the 70-hour / 8-day rule, any hours you worked 8 days ago come back at midnight. Those hours are added back to your 70-hour clock so you can keep running legally.

Think of it like this:

Every night, your log forgets what you did 8 days ago — and gives those hours back to you.

As long as your total on-duty + driving time stays under 70 hours in the last 8 days, you can keep working without parking for 34 hours.

How Do Recap Hours Work? (70-Hour / 8-Day Rule)

• You’re allowed 70 hours of on-duty time in any rolling 8-day period

• Each day at midnight (local time):

  • The hours from 8 days ago drop off

  • Those hours are recapped (added back) to your clock

• Your ELD recalculates automatically

Example

• You worked 9 hours last Monday

• This Monday at midnight → you get those 9 hours back

• If you had 1 hour left, you’ll now have 10 hours available

How Do You Calculate Recap Hours?

You don’t need complicated math — just follow this:

1. Add up all on-duty + driving hours from the last 8 days

2. Subtract that number from 70

3. The hours worked 8 days ago are what you’ll get back at midnight

Quick Formula

70 − (hours worked in last 7 days) = hours available tomorrow

Most ELDs show this as “Hours Available Tomorrow.”

Rolling Recap Hours Example

At midnight on Day 9, the 7 hours from Day 1 come back.

What Time Do Recap Hours Come Back?

✔ Midnight local time

As soon as the clock hits midnight:

• The oldest day drops off

• Those hours are added back to your 70-hour clock

You do not need to go on duty to see them.

How Long Can You Run on Recap Hours?

Indefinitely, as long as:

• You stay under 70 hours in 8 days

• You follow daily limits:

  • 11 hours driving

  • 14-hour on-duty window

  • Required rest breaks

Many OTR drivers run recaps for weeks or months without ever taking a 34.

Recap vs 34-Hour Reset (Key Difference)

• Recaps = flexibility
• 34 reset = clean slate

How Do You Avoid a 34-Hour Reset?

• Average 8–9 hours per day

• Don’t burn 11+ hours daily

• Check “Hours Available Tomorrow” on your ELD

• Plan loads around recap returns

If you max out early in the week, recaps won’t save you.

How Do Recap Hours Work on an ELD?

Most ELDs automatically:

• Track your rolling 8-day window

• Show:

  • Hours left today

  • Hours coming back tomorrow

• Prevent you from driving illegal

You still need to understand the basics — enforcement officers expect you to.

What Is the 70-Hour / 8-Day Recap?

It’s a rolling clock, not a fixed week.

Every new day:

• A new day is added

• The oldest day is removed

• Hours from that day are recapped

There is no end to the cycle unless you take a 34.

What Is the 8/2 Split and How It Helps

The 8/2 sleeper berth split lets you:

• Take 8 hours in the sleeper

• Take 2 hours off-duty or sleeper

• Reset your 14-hour clock (not your 70)

It helps you use recap hours more efficiently, but it does not reset your 70-hour clock.

Frequently Asked Questions

What is the purpose of recap hours?

To let drivers keep working legally without stopping for a 34-hour reset.

Do recap hours reset your 70?

No. They replace old hours, they don’t wipe the clock clean.

How do I check my recap?

Look at:

• Your ELD → “Hours Available Tomorrow”

• Or check what you worked 8 days ago

What happens if I go over 70?

You’re out of service until enough hours recap or you take a 34.

Key Takeaways

• Recap hours = hours worked 8 days ago

• They come back at midnight

• You can run recaps forever if managed correctly

• Most drivers fail because they burn too many hours early

• Your ELD tracks it — but you’re responsible

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