Posted almost 11 years ago. Visible to the public.
Time#utc, Time#gmt and Time#localtime are destructive methods
Calling Time#utc, Time#gmt or Time#localtime will not create a converted copy. Instead these methods modify the receiving Time object:
Copy>> time = Time.now => Thu Aug 25 09:52:28 +0200 2011 >> time.utc => Thu Aug 25 07:52:28 UTC 2011 >> time => Thu Aug 25 07:52:28 UTC 2011
This can have unexpected side effects when other code is holding pointers to the Time object you are modifying. To be safe, call these methods on a clone of the Time object. You can clone a Ruby object by using
#dup
Archive
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Copy>> time = Time.now => Thu Aug 25 09:54:40 +0200 2011 >> time.dup.utc => Thu Aug 25 07:54:40 UTC 2011 >> time => Thu Aug 25 09:54:40 +0200 2011
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