> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.encharge.io/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Trigger - Time Trigger

The Time Trigger adds people in a Segment to a Flow at a particular date and time. For instance, you can send an email to your engaged subscribers at 2 PM on Monday.

![](https://storage.crisp.chat/users/helpdesk/website/1c7a78f535b5d500/5e6d77e0-7d9a-4d1f-8180-b67867_vcvcul.png)

To set up the Time Trigger step:

* Select the Segment you'd like to add people from.
* The time you'd like it to trigger. You can use natural language like "tomorrow at 2 PM" or the calendar/time view.

Notes about the time:

* The selected time can not be in the past.
* Currently, the Time Trigger can only trigger a Flow in your timezone. If you'd like to send an email in the person's timezone, you can use a [Broadcast](//help.encharge.io/article/126-what-are-broadcasts).
* People can pass through a Time Trigger only once. If you want to change the date of a Time Trigger that has already run, it's recommended to create a new Time Trigger.

![](https://storage.crisp.chat/users/helpdesk/website/fe5e8ed292e1d800/665d58a3-2c6b-4f50-a0f7-fae19a_1jmfdnr.gif)

Finally, connect the Time Trigger to an action step (or a filter step that is connected to an action):

![](https://storage.crisp.chat/users/helpdesk/website/cb1ccc7aa1c46800/70a49260-38c0-445a-9587-fff231_csj69a.png)

If you want to add more than one segment to your Flow, just drag additional triggers onto the canvas and connect them to the same step.

![](https://storage.crisp.chat/users/helpdesk/website/65e2b0689de84000/d382dcc0-747e-4cf7-8f5a-3e9ea3_1z5igo.png)
When to use Broadcasts and when to use a Flow with a Time Trigger?

Broadcasts and the Time Trigger are similar in that they could trigger an email at a specific date and time.

If you want to send a one-off single newsletter we recommend creating a Broadcast.

If you want to trigger a series of emails (i.e. sequences) or other actions at a particular date and time you need to use the Time Trigger.:

![](https://storage.crisp.chat/users/helpdesk/website/3bba217d1be22000/38e1fb37-1532-46fc-921f-488a69_y70m6b.png)