From: ara.t.howard@...
Date: 2006-09-15T02:03:48+09:00
Subject: Re: modifying the hour in a datetime object already created

On Fri, 15 Sep 2006, Josselin wrote:

> In my prog, I create a datetime object
>
> d1s = DateTime.civil(2006,6,5,16,00,00)
>
> then later on, I need to create another datetime from this one by adding 1 
> day and changing the hour to 10:00:00
>
> I can do  easily
>
> d1e = d1s + 1
>
> but how can I modify the hour, which stays at 16:00:00 ?
>
> thanks for your help
>
> joss

harp:~ > cat a.rb
ru
require 'date'
require 'yaml'

now = DateTime.now

year, yday = now.year, now.yday
ten_hours = Rational 10, 24

tomorrow = DateTime.ordinal year, yday + 1
ten_oclock_tomorrow = tomorrow + ten_hours

y 'now' => now
y 'ten_oclock_tomorrow' => ten_oclock_tomorrow


harp:~ > ruby a.rb
---
now: 2006-09-14T11:01:49-0701
---
ten_oclock_tomorrow: 2006-09-15T10:00:00Z


-a
-- 
in order to be effective truth must penetrate like an arrow - and that is
likely to hurt. -- wei wu wei