searxng/searx/templates/oscar/time-range.html

<!-- Time range -->
<div class="input-group">
    <input type="radio" id="time-range-anytime" name="time_range" value="" {{ "checked" if time_range=="" or not time_range  else ""}}>
    <label for="time-range-anytime" class="input-group-addon">{{ _('Anytime') }}</label>
    <input type="radio" id="time-range-day" name="time_range" value="day" {{ "checked" if time_range=="day" else ""}}>
    <label for="time-range-day" class="input-group-addon">{{ _('Last day') }}</label>
    <input type="radio" id="time-range-week" name="time_range" value="week" {{ "checked" if time_range=="week" else ""}}>
    <label for="time-range-week" class="input-group-addon">{{ _('Last week') }}</label>
    <input type="radio" id="time-range-month" name="time_range" value="month" {{ "checked" if time_range=="month" else ""}}>
    <label for="time-range-month" class="input-group-addon">{{ _('Last month') }}</label>
</div>