Dan -
xxx
I acknowledge your objections.
This type of question is often from pilots "logging their first 1,000/2,000 hrs".
Or the famous "thawing" of their frozen CPL/ATPL.
I never had that problem.
xxx
Duty time is not flight time. Fully agreed.
For me, any airline, duty time are wages to be paid.
My logbook was merely a "pay" record.
xxx
I recall some USA cargo operators launching 2 full crews in a 747 from the US.
Going around the Pacific, Australia, Hongkong, and back via Alaska.
Crews took their turns, the entire flight was logged (and paid).
If resting but not asleep, a pilot would relief X seat i.e. during his meal...
xxx
Last 15 odd years I flew, I entered "one line" for all flights per month.
"JAN 200X" - 62.7 Hrs - 3 landings (of which 1 at night)
"FEB 200X" - 56.6 - 4 landings (of which 2 at night)
"MAR 200X" - 21.5 - 1 landing (1 night landing)
"APR 200X - 42.0 - 2 landings - none at night - 37.0 SIM instruction etc.
xxx
Other colleagues were even making it easier.
Month of XXX - "see company records" - provided they trusted accounting.
xxx
Funny is that there are pilots logging "hours and minutes"...
You can read they have TT 483:17' - They forgot logging the seconds.
Then it becomes TT 1,803.6 in their book.
Eventually, their C.V. becomes TT 5,700 and 1,350 PIC.
Most of old farts like me retire, and round-off hours at the nearest thousand.
xxx
And logbook...? - Mine were little pocketbooks 3 x 4 inches. One per year.
But Pprune gets forum questions "What logbook should I use".
xxx
Brgds -

Happy contrails