MSGID: 2:280/464.113 5c845bb0   
   REPLY: 1:275/362.0 5c843e04   
   Hey Ozz!   
      
    ON> ISO and RFC state not to use +0000, should use "Z" to avoid   
    ON> RgeExpr errors.   
      
   I am not sure I follow.  Here are three examples I have for --iso-8601,   
   --rfc-email and --rfc-3339 using coreutils's date app on linux;   
      
   date --iso-8601=seconds; 2019-03-10T00:47:36+00:00   
   date --rfc-email; Sun, 10 Mar 2019 00:47:36 +0000   
   date --rfc-3339=seconds; 2019-03-10 00:47:36+00:00   
      
   Note that all have the + character which I believe is correct for UTC.    
   Personally I'd avoid --rfc-email given the output string is in English.  All   
   three formats convert fine to PST8PDT;   
      
   TZ=PST8PDT date --date="2019-03-10T00:47:36+00:00"; Sat Mar  9 16:47:36 PST   
   2019   
   TZ=PST8PDT date --date="Sun, 10 Mar 2019 00:47:36 +0000"; Sat Mar  9 16:47:36   
   PST 2019   
   TZ=PST8PDT date --date="2019-03-10 00:47:36+00:00"; Sat Mar  9 16:47:36 PST   
   2019   
      
   For purely %Z as per strftime() output this works;   
      
   date +%Z; UTC   
      
   For the record I still maintain that +00:00 or +0000 or even +00 is not a   
   number.  It is a string.  Some people, no names mentioned (mark lewis), seem   
   to be misguided into believing that it is a number.   
      
    ON> Nice to note another person contributing answer(s) instead of   
    ON> arguing to argue   
      
   Aw.  You're no fun anymore.   
      
   Life is good,   
   Maurice   
      
   ... Don't cry for me I have vi.   
   --- GNU bash, version 5.0.2(1)-release (x86_64-pc-linux-gnu)   
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