#### The Data Element Parts

The data element contains the following parts:

· The designator P precedes the part that includes the calendar components, including the following:

- The number of years followed by the designator Y

- The number of months followed by the designator M

- The number of weeks followed by the designator W

- The number of days followed by the designator D

· The T designator precedes the part that includes the time components, including the following:

- The number of hours followed by the designator H

- The number of minutes followed by the designator M

- The number of seconds followed by the designator S

· The designator I precedes the number of seconds of inaccuracy.

The following example represents a period of 1 year, 6 months, 15 days, 11 hours, 30 minutes, and 30 seconds and an unspecified inaccuracy:

P1Y6M15DT11H30M30S

The following example represents a period of 3 weeks and an inaccuracy of 4 seconds:

P3WI4

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