#!/bin/ksh
# Days since last rain

let secs=$(date +'%s')-28800
# seconds since 1 Jan 70 00:00:00 UTC adjusted to PST

let days=0

while (( $secs > 0 )); do
  let secs=$secs-86400
  let days=$days+1
done

let days=$days-14748 # = 19 May 10, day after last rain
#  constant minuend is days since 1 Jan 70

print 'Content-type: text/html'
print ''

print $days