[SunHELP] Solaris10 date calculation not working?

[Sandwich Maker]

" From: stephen price <sd_price at yahoo.com>
" 
" I'm trying to do a simple "what date is yesterday" shell script variable - without having to go to perl or something else.
" 
" []
" yesterday2=`TZ=CST6CDT+24 date +%Y%m%d%H%M`
" 
" []
" 
" Why is it only 19 hours back instead of the 24 hours ?

try adding the 24 to the 6 algebraically instead of string concat, eg.
TZ=CST30CDT date

" I tried ksh & sh & bash - just in case korn wasn't handling correctly - but still got the same output.
" I'm sure I'm missing something simple - 
" Any suggestions welcome ...

i've been doing the above since 2.4.  in fact, i've used some rather
large numbers for the tz offset...

how about
typeset -i NODAYS=0	# no. of days into past, init none.
.
.
# set NODAYS
.
.
TZ=CST$((6+(24*NODAYS)))CDT
date
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