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ruby-on-railstimezonerecurring-events

Rails timezone changes when increasing timestamp

I am trying to create recurring events with based on a gap in the timestamp and experiencing what seems to be odd behavior: if I continue to increase a timestamp by a weekly gap (604800 seconds), Rails seems to change the timezone on me. 

t = Time.new(2015, 2, 22, 14, 0)
 => 2015-02-22 14:00:00 -0500 
gap = 60 * 60 * 24 * 7
 => 604800 
newt = t + gap
 => 2015-03-01 14:00:00 -0500 
newt + gap
 => 2015-03-08 15:00:00 -0400

What am I doing wrong? Or what am I doing to cause this timezone issue?

Solution

  • It is because the time zone changes from standard time to daylight savings time on March 8th, 2015.