Unix time will reach 1234567890 on 2009-02-13 15:31:30. I made a countdown timer in bash.
#!/bin/sh printf "tUNIX TIMEt TO GO:tDAYStHOURStMINUTEStSECONDSn" while true; DATE=`date +%s` SECONDS=$[1234567890-$DATE] MINUTES=$[$SECONDS/60] HOURS=$[$MINUTES/60] DAYS=$[$HOURS/24] printf "t%stt%4st%5st%7st%7sr" "$DATE" "$DAYS" "$[$HOURS%$DAYS]" "$[$MINUTES%$HOURS]" "$[$SECONDS%$MINUTES]" sleep 1 done