How to resolve the algorithm Show the epoch step by step in the REXX programming language

Published on 12 May 2024 09:40 PM
#Rexx

How to resolve the algorithm Show the epoch step by step in the REXX programming language

Table of Contents

Problem Statement

Choose popular date libraries used by your language and show the   epoch   those libraries use. A demonstration is preferable   (e.g. setting the internal representation of the date to 0 ms/ns/etc.,   or another way that will still show the epoch even if it is changed behind the scenes by the implementers),   but text from (with links to) documentation is also acceptable where a demonstration is impossible/impractical. For consistency's sake, show the date in UTC time where possible.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Show the epoch step by step in the REXX programming language

Source code in the rexx programming language

/*REXX program displays the number of days since the epoch for the DATE function (BIF). */

say '     today is: '  date()                    /*today's is format:     mm MON YYYY   */

days=date('Basedate')                            /*only the first char of option is used*/
say right(days, 40)         " days since the REXX base date of January 1st, year 1"

say ' and today is: '  date(, days, "B")         /*it should still be today (µSec later)*/
                    /*   ↑                ┌───◄─── This BIF (Built-In Function) is only */
                    /*   └─────────◄──────┘        for  newer  versions of  REXX  that  */
                    /*                             support the  2nd and 3rd  arguments. */

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