Backport #7868: DateTime.now calculate negative timezone

• Status: Closed
• Assignee: usa (Usaku NAKAMURA)

[omid.mt (Omid Mehdizadeh)]

I compiled 1.9.3-p374 on Solaris sparc. I found that the DateTime.now return time by wrong timezone in negative of what it should be. Time.now is OK.

irb(main):002:0> DateTime.now
DateTime.now
=> Sun, 17 Feb 2013 00:50:02 -0330

irb(main):006:0> Time.now
Time.now
=> 2013-02-17 00:28:07 +0330

irb(main):003:0> DateTime.now.zone
d.zone
=> "-03:30"

irb(main):004:0* DateTime.current
DateTime.current
=> Sat, 16 Feb 2013 21:20:28 +0000

This wrong timezone makes Time and DateTime comparison wrong.
As the implementation is in C now, couldn't figure out the logic.

[ko1 (Koichi Sasada)]

• Category set to lib
• Assignee set to tadf (tadayoshi funaba)
• Target version set to 2.6

Funaba-san, could you check it?

[omid.mt (Omid Mehdizadeh)]

I got this info in rails community, that may help on catching the issue faster.

pixeltrix: "Looks like it's a Ruby bug in date_core.c - the HAVE_VAR_ALTZONE section should invert the timezone or altzone value as that's the code path taken by Solaris (tm.tm_gmtoff is BSD/GNU C Library extension and altzone is set by the Solaris tzset function)."

[tadf (tadayoshi funaba)]

• File diff diff added

does this fix it?

[tadf (tadayoshi funaba)]

• Status changed from Open to Feedback

[omid.mt (Omid Mehdizadeh)]

Yes, It is OK now.

Thanks a lot.

[tadf (tadayoshi funaba)]

• Tracker changed from Bug to Backport
• Project changed from Ruby to 13
• Category deleted (lib)
• Status changed from Feedback to Open
• Assignee deleted (tadf (tadayoshi funaba))
• Target version deleted (2.6)

r39475

[nagachika (Tomoyuki Chikanaga)]

• Status changed from Open to Assigned
• Assignee set to nagachika (Tomoyuki Chikanaga)

[nagachika (Tomoyuki Chikanaga)]

• Project changed from 13 to 15

[nagachika (Tomoyuki Chikanaga)]

• Status changed from Assigned to Closed
• % Done changed from 0 to 100

This issue was solved with changeset r39676.
Omid, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

merge revision(s) 39475: [Backport #7868]

* ext/date/date_core.c: [ruby-core:52303]

[usa (Usaku NAKAMURA)]

• Project changed from 15 to 13
• Status changed from Closed to Assigned
• Assignee changed from nagachika (Tomoyuki Chikanaga) to usa (Usaku NAKAMURA)

[usa (Usaku NAKAMURA)]

• Status changed from Assigned to Closed

This issue was solved with changeset r40227.
Omid, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

merge revision(s) 39475: [Backport #7868]

* ext/date/date_core.c: [ruby-core:52303]