The following is a list of common terms you'll encounter when working with temporal data:
| Term | Description | 
|---|---|
Temporal layer  | A layer that displays data based on the current time of the time slider.  | 
Temporal table  | A stand-alone table that displays data based on the current time of the time slider.  | 
Temporal map  | A map that contains one or more temporal layers or stand-alone tables.  | 
Time stamp  | The time attached to a piece of data (feature, image, and so on). The time stamp can be a single instant or a time interval.  | 
Time instant  | A single point on the timeline.  | 
Time extent  | The period of time between two points on a timeline.  | 
Time extent of the time slider  | The period of time represented by the time slider bar.  | 
Time extent of the map  | The period of time visualized on the map set by the controls on the time slider.  | 
Temporal reference  | Information about the time zone and rules for daylight saving time. Setting a temporal reference allows you to visualize datasets recorded across different time zones that may or may not have rules for daylight saving time.  | 
Live mode  | A display option associated with data that receives continuous updates outside the application. Setting time properties on layers that receive a live feed enables Live Mode on the time slider to automatically progress the map's time extent with your system clock.  |