use Mojo::DOM;

my $dom = Mojo::DOM->new(<<'HTML');
<div class="ret">
                        <a href="blabla.com/1234" title="Text 1">
                        <div class="rtm">
                            <div class="date">
                                <div>22</div>
                                <div>mai</div>
                                <div>19:52</div>
                            </div>
                            <div class="image">
                                    <div class="imageclass-and-nb"><img src="blabla.com/img1234" alt="Text 1"></div>
                            </div>
                            <div class="all">
                                <h2 class="title">Text 1 Title</h2>
                                <div class="cat">Blue</div>
                                <div class="lieu">Dourdan</div>
                            </div>
                        </div>
                        </a>
                        <a href="blabla.com/1212" title="Text 2">
                        <div class="rtm">
                            <div class="date">
                                <div>22</div>
                                <div>mai</div>
                                <div>11:55</div>
                            </div>
                            <div class="image">
                                    <div class="imageclass"><img src="blabla.com/img1212" alt="Text 2"></div>
                            </div>
                            <div class="detail">
                                <h2 class="title">Text 2 title</h2>
                                <div class="cat">Blue</div>
                                <div class="lieu">Champigny-sur-Marne</div>
                            </div>
                        </div>
                        </a>
</div>
HTML

print $dom->find('div.date')->map(sub{$_->children->each})->map(sub{$_->text})->each;