PHP Countdown Demonstration
19 years and 126 days ago left until 2005 (New Year's).
18 years, 156 days, and 18 hours ago remaining until December 2005 (years, days, hours).
12 years ago remaining until August 14, 2012.
15 years, 125 days, 13 hours, and 37 minutes ago left until 4am on New Year's Eve 2008 (years, days, hours, minutes).
47 years and 317 days ago since Vietnam was unified [how script handles a point in the past] (years, days).
2 years, 117 days, 18 hours, 5 minutes, and 56 seconds ago until January 4, 2022 at 11:30pm and 43 seconds (years, days, hours, minutes, seconds).
13 years, 186 days, and 19 hours ago until October 31, 2010 at 12:01am (years, days, hours).