# Editing a composed date or time column

To edit the numeric components that define an existing date or time column:

1. In the Summary view, select the date or time column you wish to edit
2. Choose Column > Edit Variable Definition…
3. Make the desired changes and press OK

See also:

- Composing a date or time column from one or more components
- Extracting date or time components from a date or time column
- Computing the time elapsed between two date columns

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