Overview
LuaDate is a Lua module for date and time calculation and retrieval using the Gregorian Date system. It contains features such as date and time string parsing; time addition and subtraction; time span calculation and more.

Installation
Here is how to make the LuaDate module available to your AutoPlay Media Studio 8.0 project.

1. Download the Lua module and extract it to a temporary location.
2. Copy the date.lua file to your project's Scripts folder.
3. Add the following require to your project, e.g. in Global Functions:
require"date" -- for the date functions

Usage
The function documentation can be found in either date.doc.chm or date.doc.htm contained within the date.zip download.

Example - LUA Code

--Use the metamethod __call to construct a dateObject see example below: 



require "date"

-- prints all FRIDAY the 13TH dates between year 2000 and 2010 and shows the result

-- in a Dialog message.

strOutput = "";

for i = 2000, 2010 do

    x = date(i, 1, 1) -- year jan 1

    for j = 1, 12 do  -- from january to december

        -- set day of month to 13, check if friday

        if x:setmonth(j, 13):getweekday() == 6 then

             strOutput = strOutput..x:fmt("%A, %B %d %Y").."rn";

        end

    end

end



-- Show result in dialog message.

Dialog.Message("Output", strOutput);

Example - Output
Friday, October 13 2000
Friday, April 13 2001
Friday, July 13 2001
Friday, September 13 2002
Friday, December 13 2002
Friday, June 13 2003
Friday, February 13 2004
Friday, August 13 2004
Friday, May 13 2005
Friday, January 13 2006
Friday, October 13 2006
Friday, April 13 2007
Friday, July 13 2007
Friday, June 13 2008
Friday, February 13 2009
Friday, March 13 2009
Friday, November 13 2009
Friday, August 13 2010

Credits
Copyright 2005, 2006 Jas Latrix
http://alcor.concordia.ca/~gpkatch/gdate-method.html - Date calculation algorithms is based on this site.