| Description: The unit_id attribute provides a character or character string which serves as an abbreviation for, or symbol representing, a unit of measure. |
| Namespace Id: pds | Steward: pds | Class Name: Units_of_Time | Type: UTF8_Short_String_Collapsed |
| Minimum Value: None | Maximum Value: None | Minimum Characters: 1 | Maximum Characters: 255 |
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: ID | Conceptual Domain: Short_String |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | Value | Value Meaning |
| | day | day, a unit of time (1 day = 24 hours = 86,400 seconds). |
| | hr | hr is an abbreviation for hour, which is a unit of time (1 hr = one hour = 60 minutes = 3,600 seconds). |
| | julian day | julian day, a unit of time (1 day = 24 hours = 86,400 seconds). Usually, julian days are characterized by a continuous count from a starting date. |
| | microseconds | microseconds, a unit of time (10**6 microseconds = one million microseconds = 1 second). |
| | min | min is an abbreviation for minute, which is a unit of time (1 min = one minute = 60 seconds). |
| | ms | ms is an abbreviation for millisecond, which is a unit of time (1000 milliseconds = one thousand milliseconds = 1 second). |
| | ns | ns is an abbreviation for nanosecond, which is a unit of time (10**9 nanoseconds = one billion nanoseconds = 1 second). |
| | s | s is an abbreviation for second, which is a unit of time (an SI base unit) |
| | yr | yr is an abbreviation for year, which is a unit of time (depending on the details of the definition, one year is approximately 365.2425 days) |