org-agenda-todo-ignore-time-comparison-use-seconds

org-agenda-todo-ignore-time-comparison-use-seconds is a variable defined in `org-agenda.el'.
Its value is

nil

Documentation:
Time unit to use when possibly ignoring an agenda item.

See the docstring of various `org-agenda-todo-ignore-*' options.
The default is to compare time stamps using days. An item is thus
considered to be in the future if it is at least one day after today.
Non-nil means to compare time stamps using seconds. An item is then
considered future if it has a time value later than current time.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.4 of Emacs.