The Books Insiderindependent audiobook data
H Hour by Tom Kratman

H Hour: Audiobook

Book 3 of the Countdown series

According to The Books Insider's catalog data, the H Hour audiobook runs 15.1 hours unabridged, narrated by Jason Culp (about 10 hours at 1.5× playback speed).

15.1listening hrs
Science Fictionstore shelf
2020released
Free for new listeners

The instrument When will you finish it?

Based on 15.1 hours of listening.

Days to finish H Hour at common listening paces
Your paceYou'll finish in
30 min / day31 days
1 hour / day16 days
2 hours / day8 days
1 hour / day at 1.5×11 days

Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.

What our data says

  • At 15.1 hours, it runs longer than 88% of the 13,269 Science Fiction audiobooks in our catalog.

Catching up on Countdown

This is book 3. Books 1 to 2 run 37.3 hours before it; books 1 to 3 run 52.4 hours in all.

BookTitleLength
1Liberators18 hrs
2M Day19.3 hrs
3H Hour15.1 hrs

More narrated by Jason Culp

Jason Culp narrates 245 unabridged audiobooks in our catalog, 2,724 hours in all.

All Jason Culp audiobooks, measured

About as long, on the Science Fiction shelf

1,091 Science Fiction audiobooks in our catalog run within 10% of this length. The most popular on the store:

Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.

About this listen

H Hour is book 3 of Tom Kratman's Countdown series: a 15.1-hour unabridged recording, read by Jason Culp, released March 10, 2020, on the Science Fiction and Historical (Science Fiction & Fantasy) shelves.

The listen at a glance

Length
15.1 hrs
Narrated by
Jason Culp
Released
March 10, 2020
Format
Unabridged audiobook
Language
English
Store shelves
Science Fiction, Historical (Science Fiction & Fantasy)
Series
Countdown #3
ISBN
9781980051114

How to listen to H Hour free

New members at audiobooks.com get three free audiobooks with the trial.

Separately, the store's catalog carries more than 10,000 audiobooks that are always free to stream.

Start listening free

Questions listeners ask

How long is the H Hour audiobook?

H Hour runs 15.1 hours unabridged. At 1.5× speed that drops to roughly 10 hours.

Is the H Hour audiobook free?

Yes, for new listeners: the trial starts you with three free audiobooks.

Who narrates H Hour?

H Hour is narrated by Jason Culp.

Is H Hour worth listening to at 1.5× speed?

At 1.5× you'd finish in about 10 hours, saving 5 hours.