The issue requests adding a time picker to the existing date picker in the reagent forms library. Begin by examining the source code for the current datepicker component, likely in a file such as 'src/reagent forms/datepicker.cljs'. Understand how the datepicker is structured using Reagent and Bootstrap classes. Review the library's documentation and any open pull requests that might address this feature. Check the comments on the issue for any additional context or design suggestions. Consider using a well known time picker library or implementing a simple dropdown for hours and minutes.