The time for the Jumu’ah (prayer) is due when the sun declines (i.e. just after mid-day)
Narrated Anas bin Malik:
We used to offer the Jumuah prayer early and then have an afternoon nap.
Sahih al-Bukhari 905
The Prophet’s Mosque and its Musalla
“Narrated Sahl (bin Sa`d): The distance between the Musalla of