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

1.
am helllichten Tag, offen
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.
Der Raubüberfall geschah am helllichten Tag, direkt auf der Hauptstraße.
•
I can't believe they were arguing so loudly in broad daylight.
Ich kann nicht glauben, dass sie am helllichten Tag so laut gestritten haben.