PHP Countdown Demonstration
19 years and 125 days ago left until 2005 (New Year's).
18 years, 156 days, and 9 hours ago remaining until December 2005 (years, days, hours).
12 years ago remaining until August 14, 2012.
15 years, 125 days, 5 hours, and 9 minutes ago left until 4am on New Year's Eve 2008 (years, days, hours, minutes).
47 years and 316 days ago since Vietnam was unified [how script handles a point in the past] (years, days).
2 years, 117 days, 9 hours, 38 minutes, and 12 seconds ago until January 4, 2022 at 11:30pm and 43 seconds (years, days, hours, minutes, seconds).
13 years, 186 days, and 10 hours ago until October 31, 2010 at 12:01am (years, days, hours).