# Fields for a time\$1signal message
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This table shows the fields that apply for an action to insert a time\$1signal SCTE 35 message.


| Field | Description | 
| --- | --- | 
| Action type | SCTE 35 Time Signal. | 
| Action name | A name for this time\$1signal action. For example, you might name time\$1signal actions with a sequential number, restarting every day or every month. | 
| Start type  | Fixed or Follow or Immediate. | 
| Date and time |  If the **Start type** is **Fixed**, specify the UTC start time for the time\$1signal. The time should be at least 15 seconds in the future. Note that the time is the wall clock time, not the timecode in the input.  | 
| Reference action name |  If the **Start type** is **Follow**, choose the input to follow. The dropdown list shows all existing input switches that are file inputs. Remember that a SCTE 35 action can follow input A only if input A is a file input and the source end behavior for input A is *continue*. For information about these switching rules, see [Fixed, immediate, and follow switches](ips-switch-types.md).  | 
| Follow point | If the Start type is Follow, complete this field. The follow point is always End, to indicate that the switch will occur when the input in Reference action name has finished. | 
| Add Scte35 descriptors | Choose this button and complete the fields that appear. The descriptors are a standard component of a time\$1signal message. |