Forum: Ruby on Rails cannot store correct Time in timezone

I am storing a Time record w a timezone like :       an event at 9:30 in
Paris time

(rdb:1)  Time.zone = "Europe/Paris"
"Europe/Paris"
(rdb:1) Time.new(2012, 12, 3, 9, 30, 0).in_time_zone("Europe/Paris")
Mon, 03 Dec 2012 09:30:00 CET +01:00

Now I want to store another event occurring also at 9:30 but in London 
time
/London"
(rdb:1) Time.new(2012, 12, 3, 9, 30, 0).in_time_zone("Europe/London")
Mon, 03 Dec 2012 08:30:00 GMT +00:00

which is wrong ....  I want this event at 9:30 GMT !!

what's wrong there ?
thanks for feedback

Time. New uses the default system timezone when no one is given, so u 
say
that you want 9:30 of your systems timezone in GMT, which is probably 
8:30
GMT, depending on your local time zone.

You have to add the corresponding parameter to Time. New. Take a look at
its documentation.
Am 03.12.2012 12:10 schrieb "Erwin" <yves_dufour@mac.com>:

Thanks Norbert,  my issue is that I don't see how to do that :

As per the doc I can defined the time_zone to be used for a specific 
block

(rdb:1) Time.use_zone("Europe/London"){ Time.now.in_time_zone }
Mon, 03 Dec 2012 14:33:24 GMT +00:00

(rdb:1) Time.use_zone("Europe/Paris"){ Time.now.in_time_zone }
Mon, 03 Dec 2012 15:33:41 CET +01:00

This is fine with Time.now , but not with a Time.new ...

(rdb:1) Time.use_zone("Europe/London"){ Time.new(2012, 12, 3, 9, 30, 0) 
}
2012-12-03 09:30:00 +0100

(rdb:1) Time.use_zone("Europe/Paris"){ Time.new(2012, 12, 3, 9, 30, 0) }
2012-12-03 09:30:00 +0100

I cannot believe that there is no way to do the same for Time.new .. ?





Le lundi 3 dcembre 2012 12:21:01 UTC+1, Norbert Melzer a crit :

sorry I pasted the wrong test , but the result is the same

 Time.use_zone("Europe/London"){ Time.new(2012, 12, 3, 9, 30,
0).in_time_zone }
Mon, 03 Dec 2012 08:30:00 GMT +00:00   # => I want 9:30 GMT there

(rdb:1)  Time.use_zone("Europe/Paris"){ Time.new(2012, 12, 3, 9, 30,
0).in_time_zone }
Mon, 03 Dec 2012 09:30:00 CET +01:00


Le lundi 3 dcembre 2012 12:10:34 UTC+1, Erwin a crit :

[SOLVED]   Time.zone.local(2012, 12, 3, 9, 30, 0)  inside the
 TIme.use_zone did it ...



1.9.3p194 :011 > Time.use_zone("Europe/London"){ Time.zone.local(2012, 
12,
3, 9, 30, 0) }
 => Mon, 03 Dec 2012 09:30:00 GMT +00:00

1.9.3p194 :012 > Time.use_zone("Europe/Paris"){ Time.zone.local(2012, 
12,
3, 9, 30, 0) }
 => Mon, 03 Dec 2012 09:30:00 CET +01:00

1.9.3p194 :013 >  Time.use_zone("Asia/Singapore"){ Time.zone.local(2012,
12, 3, 9, 30, 0) }
 => Mon, 03 Dec 2012 09:30:00 SGT +08:00


Le lundi 3 dcembre 2012 15:39:04 UTC+1, Erwin a crit :

Time.new has a parameter for the timezone offset, use it, it would make
your code more clean

http://www.ruby-doc.org/core-1.9.3/Time.html

2012/12/3 Erwin <yves_dufour@mac.com>

> [SOLVED]   Time.zone.local(2012, 12, 3, 9, 30, 0)  inside the
>  TIme.use_zone did it ...
>
>
>
> 1.9.3p194 :011 > Time.use_zone("Europe/London"){ Time.zone.local(2012, 12,
> 3, 9, 30, 0) }
>  => Mon, 03 Dec 2012 09:30:00 GMT +00:00
>
Time.new(2012, 12, 3, 9, 30, 0, "+00:00")

>
>
> 1.9.3p194 :012 > Time.use_zone("Europe/Paris"){ Time.zone.local(2012, 12,
> 3, 9, 30, 0) }
>  => Mon, 03 Dec 2012 09:30:00 CET +01:00
>
Time.new(2012, 12, 3, 9, 30, 0, "+01:00")

>
> 1.9.3p194 :013 >  Time.use_zone("Asia/Singapore"){ Time.zone.local(2012,
> 12, 3, 9, 30, 0) }
>  => Mon, 03 Dec 2012 09:30:00 SGT +08:00
>
Time.new(2012, 12, 3, 9, 30, 0, "+08:00")