in broad daylight
US /ɪn brɔd ˈdaɪt.laɪt/
UK /ɪn brɔd ˈdaɪt.laɪt/

1.
in pieno giorno, apertamente
during the day, when it is easy to see what is happening, often used to express surprise or shock that something illegal or inappropriate occurred openly
:
•
The robbery happened in broad daylight, right on the main street.
La rapina è avvenuta in pieno giorno, proprio sulla strada principale.
•
I can't believe they were arguing so loudly in broad daylight.
Non posso credere che stessero litigando così forte in pieno giorno.