This script will parse a given cronjob and return when it will execute in a more human-readable format
./cron_parser.py "0 0 1 * ? /some/command/here"
minute 0
hour 0
day of month 1
month 1 2 3 4 5 6 7 8 9 10 11 12
day of week
command /some/command/here
You can also use -h to see additional flags