The rules that use the category "<time_interval_unit-minute-pl>" are:

<time_point_name>

<h_hour> <offset_op> <up_to_two_digits-pl> <time_interval_unit-minute-pl>

<time_interval>

<digit-not_zero-pl> <time_interval_unit-hour-pl> and <minute_duration-pl> <time_interval_unit-minute-pl>

<digit-not_zero-sing> <time_interval_unit-hour-sing> and <minute_duration-pl> <time_interval_unit-minute-pl>