https://www.attorneyatwork.com/analog-attorney-5-best-index-cards/

Article about general usefulness of index cards written by a lawyer and for them, though not specific to them as a subgroup.

Makes not of Nock's Dot-Dash cards which were apparently 3 x 5" dash gridded cards similar to Midori's grid notebooks. The website for the company is no longer active. Archived site: https://web.archive.org/web/20171007102414/https://nockco.com/paper/dotdash-3-x-5-note-cards

Among the Nandi an occupational definition of time evolved covering not only each hour but half hours of the day.

This reminds me of hearing attorneys journaling their day down to 7 1/2 minute increments for billing their clients.

But based on science and with computers, we're now able to discriminate things down to the time it takes atoms to vibrate and we can date and timestamp things in our worklives to the nth degree. Even this post will have a timestamp on it down to the thousandth of a second.