Ruby's Time.strftime %P option doesn't work? -

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i'm building rails application , have come across seems strange behaviour. according ruby's documentation of time.strftime(), %p , %p valid options:

%p - meridian indicator (``am''  or  ``pm'') %p - meridian indicator (``am''  or  ``pm'')

using rails console (rails 3.0.3, ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]) observe following behaviour:

>> datetime.now.strftime("%l:%m%p on %a %e %y") => " 2:23pm on tuesday  1 2011" >> time.now.strftime("%l:%m%p on %a %e %y") => " 2:23p on tuesday  1 2011" >> time.now.strftime("%l:%m%p on %a %e %y") => " 2:23pm on tuesday  1 2011" >> 2.hours.ago.strftime("%l:%m%p on %a %e %y") => "11:29p on monday 28 2011"

note how in datetime.now.strftime, %p evaluates expected lowercase pm. time.now.strftime %p rendered uppercase p.

the final example uses activesupport::timewithzone class, , renders incorrectly (2 hours ago in morning).

is expected behaviour? or should file bug somewhere, , if so, where's best place so?

with 1.9.2-p180 in irb:

welcome irb. using ruby 1.9.2p180 (2011-02-18 revision 30909) [x86_64-darwin10.6.0]. have fun ;) >> time.now.strftime('%p %p') #=> "pm pm" >> datetime.now.strftime('%p %p') #=> "pm pm"

with 1.8.7 in irb:

welcome irb. using ruby 1.8.7 (2011-02-18 patchlevel 334) [x86_64-darwin10.6.0]. have fun ;) >> time.now.strftime('%p %p') #=> "pm p" >> datetime.now.strftime('%p %p') #=> "pm pm"

rubydoc.info shows no "%p" support 1.8.7:

 format meaning:    %a - abbreviated weekday name (``sun'')   %a -  full  weekday  name (``sunday'')   %b - abbreviated month name (``jan'')   %b -  full  month  name (``january'')   %c - preferred local date , time representation   %d - day of month (01..31)   %h - hour of day, 24-hour clock (00..23)   %i - hour of day, 12-hour clock (01..12)   %j - day of year (001..366)   %m - month of year (01..12)   %m - minute of hour (00..59)   %p - meridian indicator (``am''  or  ``pm'')   %s - second of minute (00..60)   %u - week  number  of current year,           starting first sunday first           day of first week (00..53)   %w - week  number  of current year,           starting first monday first           day of first week (00..53)   %w - day of week (sunday 0, 0..6)   %x - preferred representation date alone, no time   %x - preferred representation time alone, no date   %y - year without century (00..99)   %y - year century   %z - time zone name   %% - literal ``%'' character     t = time.now    t.strftime("printed on %m/%d/%y")   #=> "printed on 04/09/2003"    t.strftime("at %i:%m%p")            #=> "at 08:56am"

activesupport's ri doc says:

 ri activesupport::timewithzone#strftime ----------------------------------- activesupport::timewithzone#strftime      strftime(format) ------------------------------------------------------------------------      replaces +%z+ , +%z+ directives +zone+ ,      +formatted_offset+, respectively, before passing time#strftime,      zone information correct

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