CRON, or Cron, is a powerful UNIX time format. With CRON time scheduling becomes flexible and powerful as never before. You may switch from an ordinary style schedule to a CRON-style schedule by enabling the 'Advanced mode' for the Periodical Schedule in the Start step of the Task Scenario. CRON has certain rules which are outlined in this section. |
| Field | Permitted Value Range | Comment | Minute | 0 – 59 | | Hour | 0 – 23 | | Day of week | 0 – 6 | 0 (zero) is Sunday SUN – SAT not supported | Day of month | 1 – 31 | | Month | 1 – 12 | JAN – DEC not supported |
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| There are certain special symbols that help to configure CRON schedule: | ▪ | Asterisk ('*'): means all values within the permitted rage of values for the selected field. |
| ▪ | Plus ('+'): converts a value into an interval. For example, Minute: 5 means the fifth minute of an hour and Minute: +5 means every five minutes during an hour. |
| ▪ | Hyphen ('-'): means a range including numbers that are used to limit the range. Example: 9-11 h means hours 9, 10, and 11. |
| ▪ | Comma (','): used to separate values in the field. |
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| A list is a combination of values set with special symbols and separated by comma. Lists are supported by AnyFileBackup. Example: 0-4,8-12 |
| Field | Description | Minute | Hour | Day | Month | Weekday | +1 | * | * | * | * | execute task every minute | 0 | 0 | * | * | * | execute task every midnight | 0 | +12 | * | * | 1-5 | execute task at midnight and at noon from Monday to Friday | 0 | 0 | 1 | * | * | execute task at midnight after the end of every month | 0 | 0 | * | * | 6 | execute task at midnight on Saturday | 15 | +6 | * | * | * | execute task on 15th minute every 6 hours (that is 0:15, 6:15, 12:15, 18:15) | 0 | 8-16 | * | * | 1-5 | execute task at the beginning of every hour from 8 in the morning till 16 in the evening from Monday to Friday |
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