crontab

# Example of job definition: 
# .---------------- minute (0 - 59) 
# |  .------------- hour (0 - 23) 
# |  |  .---------- day of month (1 - 31) 
# |  |  |  .------- month (1 - 12) OR jan,feb,mar,apr ... 
# |  |  |  |  .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat 
# |  |  |  |  | 
# *  *  *  *  *  user command to be executed 
# Example : update every hour
# 0 * * * * arkmanager update
# Example : backup every 15min
# */15 * * * * arkmanager backup
# Example : backup every day at midnight
# 0 0 * * * arkmanager backup
# WARNING : the container timezone is maybe not your current timezone
#           You can sync them with option -v /etc/localtime:/etc/localtime:ro or -e "TZ=UTC"