Abbas Di Palma, Shaykh Abbas Di Palma holds a BA and an MA degree in Islamic Studies, and certifications from the Language Institute of Damascus University. He has also studied traditional Islamic sciences in... Answer updated 10 months ago

as salam alaikum

the sunset (Maghrib time) marks the beginning of the new twenty-four-hour period (Yawm) or "day". For example, at Maghrib of Thursday starts the night of Friday (Laylat al-Jumu'ah) and at Fajr time of the night of Friday starts the daytime of Friday (Nahar al-Jumu'ah) and it lasts until the next Maghrib. The same goes for all the others days.

With prayers for your success.