Dates and Times

Date Computations
Get the current date and time
 * now

Compute information about a date
 * July 4, 1776
 * 05/16/07

Specify a day of the week
 * next Thursday
 * third Tuesday in April
 * 29th Sunday in 2025

Compute a time difference&gt;
 * 8:25 am to 7:10pm
 * Mar 4, 1991 to Sep 7, 1995
 * Mar 4, 1991 to Sep 7, 1995

Compute a day or time
 * 17 hours from now
 * 3 months ago
 * Aug 1 + 8 weeks

Time Zones
Get the current time in another time zone
 * time in Tokyo

Compare the local time in several cities
 * New York, Chicago, Denver, San Francisco

Calendars
Generate a calendar for a month
 * this month
 * next month
 * March 1850

Generate a calendar for a year
 * this year
 * 2010 AD

Get information about the calendar
 * Which months have 31 days?

Holidays
Compute the date of a holiday
 * Thanksgiving
 * Easter 1910

Compute the dates of US and world Holidays for a given year
 * holidays 2009

Geological Time
Compute geological epoch information
 * 20 million years ago