Workflow Activities

Last updated Oct 21, 2025

Time Trigger

UiPath.Core.Activities.TimeTrigger

The Time Trigger activity allows you to schedule a recurrent time to start a job. In Studio Web, when you publish a project with this activity, it automatically creates the appropriate trigger in Orchestrator in your personal folder.

Project Compatibility

Windows | Cross-Platform

Configuration

Trigger every - The numerical value for the trigger execution. This relates to how often the trigger starts according to the frequency.
Frequency - The type of frequency on which the trigger executes. The available options are:
- Minute(s) - Specifies the frequency in minutes when the trigger executes.
- Hour(s) - Specifies the frequency in hours when the trigger executes.
  - Starts at minute - Specifies the minute of the hour at which the trigger executes.
- Day(s) - Specifies the frequency in days at which the trigger execute.
  - At what time - Specifies the time of the day when to repeat the trigger.
- Week
  - On the following day(s) of the week - Allows you to select the day or days of the week to repeat the trigger.
  - At what time - Specifies the time of the day when to repeat the trigger.
- Month(s)
  - On - Allows you to choose between using the day of the month or the day of the week for the interval to repeat the trigger.
    - Days of the month - Specifies the day or days of the month to repeat the trigger. The following options are available for selection: "Last day of the month", "Last weekday of the month", or A specific day of the month.
      Note: If you choose "Last day of the month" or "Last weekday of the month", you cannot combine them with another selection.
      - On the following day(s) of the month - Specifies the day or days of the month to repeat the trigger.
      - At what time - Specifies the time of the day when to repeat the trigger on the selected date.
    - Days of the week - Specifies the day or days of the week to repeat the trigger.
      - On the following day(s) of the week - Specifies the day or days of the week on which to repeat the trigger.
      - At what time - Specifies the time of the day when to repeat the trigger on the selected day.
Advanced (Cron expression)
- Cron Expression - Allows you to configure an advanced cron expression for the trigger frequency. This field is only available when Advanced (Cron expression) is selected as the frequency.
  - The cron expression format is {Seconds} {Minutes} {Hours} {Day of month} {Month} {Day of week} {Year}
    For example: the cron expression 5 6,18 ? * * means "Trigger at 5 minutes past hour 6 and 18 on every day-of-week".

Cron expression fields:

Field	Mandatory	Allowed Values	Allowed Special Characters
`seconds`	Yes	`0` - `59`	`, - * /`
`minutes`	Yes	`0` - `59`	`, - * /`
`hours`	Yes	`0` - `23`	`, - * /`
`day of the month`	Yes	`1` - `31`	`, - * / ? L W`
`month`	Yes	`1` - `12` or `JAN` - `DEC`	`, - * /`
`day of the week`	Yes	`1` - `7` or `SUN` - `SAT`	`, - * / ? L #`
`year`	No	blank or `1970` - `2099`	`, - * /`

Special characters used in cron expressions:

Character	Description	Example
`*`	Used to indicate all values for the given field.	`* * * ? * ` would trigger every second, whereas `0 * ? * *` would trigger every minute, more specifically at second 0 of each minute.
`?`	Used to indicate that no value is specified. May be used only in the `day of the month` or `day of the week` fields.	`0 0 0 15 * ? ` would trigger at midnight on the 15th day of each month, whereas `0 0 0 ? 2 *` would trigger at midnight each Monday.
`-`	Used to indicate a range of values.	`0` `0` `9-17` `?` `*` `2-6` would trigger every hour from 9:00am until 5:00pm on Monday through Friday.
`,`	Used to indicate additional values.	`0 0 9-17 ? * 2-6` would trigger every hour from 9:00am until 5:00pm on Mondays, Wednesdays, and Fridays.
`/`	Used to indicate increments of the given field(s).	`0 0 2/3 ? * 2/7` would trigger every three hours, starting from 2 a.m. on Mondays, beginning at midnight.
`L`	Used to indicate Last. May be used only in the `day of the month` or `day of the week` fields. For `day of the week`, it can be used after another value, for example `6L` to indicate the last Friday.	`59 59 23 L * ?` would trigger at 11:59:59pm on the last day of each month, whereas `59 59 23 ? * 2L` would trigger at the same time but only on the last Monday of each month.
`W`	Used to indicate the nearest weekday to the given value. May only be used with the `day of the month` field.	`0 0 0 15W * ?` would trigger at midnight of the nearest weekday to the 15th, every month. If the 15th is a Saturday, it would trigger on Friday the 14th, whereas if the 15th is Sunday, it will trigger on Monday the 16th.
`#`	Used to indicate a desired monthly occurrence of the given value, for example the first Friday, or fourth Thursday. May only be used with the `day of the week` field.	`0 0 17 ? * 6#1` would trigger at 5:00pm on the first Friday of every month. This can be used only once in the expression.