Fred asked if we could shorten the “about 1 month ago” text in an information-rich table that was squeezing the created_at data.

I’m not familiar with the i18n API beyond supporting internationalization in Clearance. Therefore, it took me mildly by surprise when I learned that you can override distance_in_words with the i18n API (and, by extension, time_ago_in_words).
Speaks English real good
i18n is the right tool to solve a problem like this even in an English-only application. A quick change to config/locales/en.yml, however, and we’re done:
en:
datetime:
distance_in_words:
less_than_x_seconds:
other: '1 minute'
half_a_minute: '1 minute'
less_than_x_minutes:
one: '1 minute'
x_minutes:
one: '1 minute'
other: '{{count}} minutes'
about_x_hours:
one: '1 hour'
other: '{{count}} hours'
about_x_months:
one: '1 month'
other: '{{count}} months'
about_x_years:
one: '1 year'
other: '{{count}} years'
over_x_years:
one: 'over 1 year'
other: 'over {{count}} years'
The result:

You can see other options in svenfuchs/i18n.
Shoulda