timer_down_2h.rb

require 'time'
o = Time.now
begin
loop do
  dt = Time.at((n=Time.now)-o.to_i)
  print (n-o).to_i%1800==0? 7.chr
  : Time.at(Time.at(61200)-dt).strftime("LEFT TIME::{%Hh:%Mm:%Ss}")
  print "\r"
  sleep(1)
end
rescue Interrupt
  puts 7.chr
  puts "!!!stop!!!"
  3.times{print(".");sleep(1)}
end