Neither the opening titles nor the closing titles show the film's title written out on-screen. Instead, the film ends with a shot of an analog clock on the wall for five seconds, as its second hand is reaching the time of 12:20 (which would be notated as 12h20 in French).
The only moment in the film when the title is shown written out, is on the post-it note on the fridge, which is written in all capital letters (so "12H20" instead of "12h20").
The only moment in the film when the title is shown written out, is on the post-it note on the fridge, which is written in all capital letters (so "12H20" instead of "12h20").