PHP Countdown Demonstration
19 years and 130 days ago left until 2005 (New Year's).
18 years, 160 days, and 22 hours ago remaining until December 2005 (years, days, hours).
12 years ago remaining until August 14, 2012.
15 years, 129 days, 18 hours, and 2 minutes ago left until 4am on New Year's Eve 2008 (years, days, hours, minutes).
47 years and 321 days ago since Vietnam was unified [how script handles a point in the past] (years, days).
2 years, 121 days, 22 hours, 31 minutes, and 24 seconds ago until January 4, 2022 at 11:30pm and 43 seconds (years, days, hours, minutes, seconds).
13 years, 190 days, and 23 hours ago until October 31, 2010 at 12:01am (years, days, hours).