# tChronometerStart Standard properties
These properties are used to configure tChronometerStart running in the Standard Job framework.
The Standard tChronometerStart component belongs to the Logs & Errors family.
The component in this framework is available in all Talend products.
## Global Variables
| Global Variables | STARTTIME: the start time to
calculate the processing time of subJob(s). This is a Flow variable and it returns a
long.
ERROR\_MESSAGE: the error message generated by the component when an
error occurs. This is an After variable and it returns a string. This variable functions
only if the Die on error check box
is cleared, if the component has this check
box.
A Flow variable functions during the execution of a component
while an After variable functions after the execution of the component.
To fill up a field or expression with a
variable, press Ctrl + Space to
access the variable list and choose the variable to use from it.
For further information about variables, see *Talend Studio*
*User Guide*. |
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## Usage
| **Usage rule** | You can use tChronometerStart as
a start or middle component. It can precede one or more processing
tasks in the subJob. It can precede one or more subJobs in the main
Job. |
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