# Date Performance

**URL:** <https://www.ruby-forum.com/t/date-performance/162599>\
**Category:** Rails\
**Created:** [March 11, 2009, 7:08pm UTC](https://www.ruby-forum.com/t/date-performance/162599 "2009-03-11T19:08:36Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![alesc](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/f19dbf/32.png) [@alesc](https://www.ruby-forum.com/u/alesc)\
**Post date:** [March 11, 2009, 7:08pm UTC](https://www.ruby-forum.com/t/date-performance/162599/1 "2009-03-11T19:08:36Z")

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Hello,  
i pubblished on my blog some test about Date, DateTime and Time  
formatting performance, it’s in italian but the data it’s in english,  
i think it’s quite stranghe since it show how base ruby can’t manage  
Date and DateTime formatting using strftime while Time it’s fast.  
I’ve tried a library that incredibly decrese the time required by  
strftime (something like 14 sec for 50000 cicles vs 0.30 sec for same  
number of cicles)

You can see test result at  
[http://www.webair.it/blog/2009/03/05/ruby-ancora-sulle-prestazioni/](http://www.webair.it/blog/2009/03/05/ruby-ancora-sulle-prestazioni/)