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Daylight savings handling is broken in #<Method: Time(ActiveSupport::CoreExtensions::Time::Calculations)#+>
Reported by Jerome | March 4th, 2011 @ 01:06 AM
Hey,
I don't know if this is a duplicate of an existing defect. Some of my tests started to fail today because of how daylight savings is being handled within <Method: Time(ActiveSupport::CoreExtensions::Time::Calculations)#+>
ree-1.8.7-2010.02 > Time.now
=> Fri Mar 04 09:06:09 +1100 2011
ree-1.8.7-2010.02 > Time.now + 30.days
=> Sun Apr 03 09:06:15 +1000 2011
ree-1.8.7-2010.02 > Time.at(Time.now.to_i + 30.days)
=> Sun Apr 03 08:06:33 +1000 2011
ree-1.8.7-2010.02 > Time.now.method(:+)
=> #<Method: Time(ActiveSupport::CoreExtensions::Time::Calculations)#+>
At moment it is daylight savings here in Melbourne Australia (GMT+11) but it changes back to GMT+10 in just under a month.
Cheers
Jerome
Comments and changes to this ticket
-
Andrew White March 4th, 2011 @ 06:55 AM
- State changed from “new” to “invalid”
- Importance changed from “” to “Low”
The time calculation methods are sensitive to the duration that you add/subtract. If you specify a period like 30.days or 1.month it will keep the same time across DST boundaries, however if you specify a period like 720.hours then the time will change.
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Andrew White
Jeremy Kemper
Jerome
Manfred Stienstra
Piotr Sarnacki