Time question

[Confused]

ok I've made the changes. I thinks its looking better but its obviously still wrong

import datetime
x= input('opening time: ')
y= input('closing time: ')

o = datetime.time(8,3,0)
p= datetime.time(16,0,0)
def compute_opening_duration(t, z):
    if t==8,3,0 and z==16,0,0
    return 7.5

    elif
    if 8,3,1<t<8,29,59 or 16,0,1<z<15,59,59
    return 7.25
    
    else
    return -1

Error:
File "<ipython-input-10-b0f49fce2ac6>", line 21
    if t==8,3,0 and z==16,0,0
           ^
SyntaxError: invalid syntax