June 15, 2000 (dates far in the past are formatted as exact dates)
(more recent dates are formatted as relative times)
(Using the o-date-format option)
(Using the o-date-format with time-ago-limit-4-hours)
(Using the o-date-format with time-ago-limit-24-hours)
(Using the o-date-format with custom format string)
(Using multiple o-date-format elements)