Request Schedule

There are 3 ways to specify task schedules, interval, cron expression, and one time schedule.

Interval

You may specify a simple interval as your task schedule. You can choose the frequency from once per minute, to once per day.

IntervalNotes
Every 1 minuteTask will be triggered every minute, counting from the time the task is last activated.
Every 5 minutesTask will be triggered every 5 minutes, counting from the time the task is last activated.
Every 10 minutesTask will be triggered every 10 minutes, counting from the time the task is last activated.
Every 30 minutesTask will be triggered every 30 minutes, counting from the time the task is last activated.
Every 1 hourTask will be triggered every hour, counting from the time the task is last activated.
Every 1 dayTask will be triggered every day, counting from the time the task is last activated.

Cron

You can specify a cron expression if you need a more complex schedule. A cron expression is a string representing a schedule, with fields separated by spaces. These fields represent different time units, and the expression can have either 5 or 6 fields. You may define cron schedules as frequently as once per minute.

A 5-field cron expression has the following structure:

* * * * *
| | | | |
| | | | +-- Day of the week (0 - 7) (Sunday=0 or 7)
| | | +---- Month (1 - 12)
| | +------ Day of the month (1 - 31)
| +-------- Hour (0 - 23)
+---------- Minute (0 - 59)

A 6-field cron expression includes the second field. The structure is as follows:

* * * * * *
| | | | | +-- Day of the week (0 - 7) (Sunday=0 or 7)
| | | | +---- Month (1 - 12)
| | | +------ Day of the month (1 - 31)
| | +-------- Hour (0 - 23)
| +---------- Minute (0 - 59)
+------------ Second (0 - 59)

Special Characters:

CharacterMeaning
*Represents all possible values.
,Separates multiple values.
-Specifies a range of values.
/Specifies increments.
?No specific value, it is used instead of the asterisk (*) for leaving either day-of-month or day-of-week blank.

Here are some examples:

ExpressionMeaning
* * ? * *Every minute
*/2 * ? * *Every even minute
1/2 * ? * *Every uneven minute
*/2 * ? * *Every 2 minutes
*/5 * ? * *Every 5 minutes
*/10 * ? * *Every 10 minutes
*/30 * ? * *Every 30 minutes
15,30,45 * ? * *Every hour at minutes 15, 30 and 45
0 * ? * *Every hour
0 */2 ? * *Every two hours
0 0/2 ? * *Every even hour
0 1/2 ? * *Every uneven hour
0 */3 ? * *Every three hours
0 */6 ? * *Every six hours
0 */12 ? * *Every twelve hours
0 0 * * ?Every day at midnight (12am)
0 1 * * ?Every day at 1am
0 6 * * ?Every day at 6am
0 12 * * ?Every day at noon (12pm)
0 12 * * SUNEvery Sunday at noon
0 12 * * MONEvery Monday at noon
0 12 * * TUEEvery Tuesday at noon
0 12 * * WEDEvery Wednesday at noon
0 12 * * THUEvery Thursday at noon
0 12 * * FRIEvery Friday at noon
0 12 * * SATEvery Saturday at noon
0 12 * * MON-FRIEvery Weekday at noon
0 12 * * SUN,SATEvery Saturday and Sunday at noon
0 12 */7 * ?Every 7 days at noon
0 12 1 * ?Every month on the 1st, at noon
0 12 2 * ?Every month on the 2nd, at noon
0 12 15 * ?Every month on the 15th, at noon
0 12 1/2 * ?Every 2 days starting on the 1st of the month, at noon
0 12 1/4 * ?Every 4 days staring on the 1st of the month, at noon
0 12 ? JAN *Every day at noon in January only
0 12 ? JUN *Every day at noon in June only
0 12 ? JAN,JUN *Every day at noon in January and June
0 12 ? DEC *Every day at noon in December only
0 12 ? JAN,FEB,MAR,APR *Every day at noon in January, February, March and April
0 12 ? 9-12 *Every day at noon between September and December

One time schedule

You can set up a one-time schedule if you only want to execute the task once. The task will be automatically disabled once it's executed. You may re-enable the task after updating the one-time schedule with a future date.

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