By default, the Time List will only display time entries through today's date, however there may be times where you have time entries that have a future date. These future time entries will show as part of your "Uninvoiced" totals, but will be filtered out of the time list view.
In order to see these entries, you will need to use your advanced search filters.
This applies especially to Time Entries created from the Calendar, as well as time entered manually.