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Opened 10 years ago

Closed 9 years ago

#1466 closed bug (fixed)

jDateTime initialization with an iso8601 string is wrong

Reported by: lionelt Owned by:
Priority: normal Milestone: Jelix 1.2.8
Component: jelix:utils Version: 1.3.1
Severity: normal Keywords:
Cc: Blocked By:
Blocking: Documentation needed: no
Hosting Provider: Php version:


When initialized with an iso8601 string including a timezone indicator, jDateTime does not handle correctly this timezone indicator.

Let's talk about april 15th 2012 noon in Paris (summer time +0200 offset) : 2012-04-15T12:00:00+0200

This date is equivalent to the UTC one : 2012-04-15T10:00:00+0000 = 2012-04-15T10:00:00Z

When initializing jDateTime with such a date, the timezone offset is added to the date when positive, substracted when negative. The contrary should be done.

2012-04-15T12:00:00+0200 is saved as :

year => 2012
month => 4
day => 15
hour => 14
minute => 0
minute => 0

If this jDateTime is exported as an iso8601 string (with the current implementation of jDateTime) it would display : 2012-04-15T14:00:00Z (jDateTime always output iso8601 dates with the Z timezone indicator, which means UTC)

This date is not equal to the date we entered which was (with the Z indicator) : 2012-04-15T10:00:00Z

Therefore I think the timezone should be substracted when positive and added when negative. This inversion is here in the code :

--- before	2012-04-22 12:40:33.000000000 +0200
+++ after	2012-04-22 12:41:13.000000000 +0200
@@ -317,9 +317,9 @@
                     if($match[8] != 'Z'){
                         $d = new jDuration(array('hour'=>$match[10],'minute'=>$match[11]));
                         if($match[9] == '+')
-                            $this->add($d);
-                        else
+                        else
+                            $this->add($d);

Change History (4)

comment:1 Changed 10 years ago by foxmask

Can you attach the patch , or even better, make a pull request of your patch on github ?

comment:2 Changed 10 years ago by laurentj

  • Milestone set to Jelix 1.2.8
  • Status changed from new to confirmed

We MUST add tests to verify such bugs.

comment:3 Changed 10 years ago by laurentj

  • Component changed from jelix to jelix:utils

comment:4 Changed 9 years ago by laurentj

  • Resolution set to fixed
  • Status changed from confirmed to closed
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