{% set range_begin = field.begin | default('00:00') | hhmm_to_seconds %} {% set range_end = field.end | default('23:30') | hhmm_to_seconds %} {% set range_step = field.step | default('00:30') | hhmm_to_seconds %} {% for range_time in range_begin | range(range_end, range_step) %} {{ range_time | seconds_to_hhmm }} {% endfor %} — {% for range_time in range_begin | range(range_end, range_step) %} {{ range_time | seconds_to_hhmm }} {% endfor %}