About Component Specification Duration XQuery Expressions

This topic applies to the Order Component editor, Duration tab, Duration Expression area, XQuery subtab.

Context: There is no input document for this expression.
Prolog: There is no prolog required for this expression:
Body: The XQuery body returns a duration value based on the XQuery you enter:
```
PyYmMdDThHmMsS
```
where
- P begins the expression.
- yY specifies the year.
- mM specifies the month.
- dD specifies the day.
- T separates the parts of the expression indicating the date from the parts of the expression indicating the time.
- hH specifies the hour.
- mM specifies the minutes.
- sS specifies the seconds.

The following example is a hard coded duration expression for seven hours:

PT7H0M0S

For more information about how OSM uses these fields to calculate order component durations, see OSM Concepts.