I’m just really confused at the times the events took place. Like Spirithound said, the real question maybe is if they began to meet before or after the sun rose. But if they met before the sun rose and Jesus was crucified at around 11 am (harmonizing Mark with John) then there’s absolutely enough time for everything to happen.
Let’s look at the texts first:
Mark
And they led Jesus to the high priest. And all the chief priests and the elders and the scribes came together. (…) Now the chief priests and the whole council were seeking testimony against Jesus to put him to death, but they found none. For many bore false witness against him, but their testimony did not agree. And some stood up and bore false witness against him, saying, “We heard him say, ‘I will destroy this temple that is made with hands, and in three days I will build another, not made with hands.’” Yet even about this their testimony did not agree. And the high priest stood up in the midst and asked Jesus, “Have you no answer to make? What is it that these men testify against you?” But he remained silent and made no answer. Again the high priest asked him, “Are you the Christ, the Son of the Blessed?” And Jesus said, “I am, and you will see the Son of Man seated at the right hand of Power, and coming with the clouds of heaven.” And the high priest tore his garments and said, “What further witnesses do we need? You have heard his blasphemy. What is your decision?” And they all condemned him as deserving death. And some began to spit on him and to cover his face and to strike him, saying to him, “Prophesy!” And the guards received him with blows. (…) And as soon as it was morning, the chief priests held a consultation with the elders and scribes and the whole council. And they bound Jesus and led him away and delivered him over to Pilate. (…) Pilate, wishing to satisfy the crowd, released for them Barabbas, and having scourged Jesus, he delivered him to be crucified.
Matthew
Then those who had seized Jesus led him to Caiaphas the high priest, where the scribes and the elders had gathered. (…) Now the chief priests and the whole council were seeking false testimony against Jesus that they might put him to death, but they found none, though many false witnesses came forward. At last two came forward and said, “This man said, ‘I am able to destroy the temple of God, and to rebuild it in three days.’” And the high priest stood up and said, “Have you no answer to make? What is it that these men testify against you?” But Jesus remained silent. And the high priest said to him, “I adjure you by the living God, tell us if you are the Christ, the Son of God.” Jesus said to him, “You have said so. But I tell you, from now on you will see the Son of Man seated at the right hand of Power and coming on the clouds of heaven.” Then the high priest tore his robes and said, “He has uttered blasphemy. What further witnesses do we need? You have now heard his blasphemy. What is your judgment?” They answered, “He deserves death.” Then they spit in his face and struck him. And some slapped him, saying, “Prophesy to us, you Christ! Who is it that struck you?” (…) When morning came, all the chief priests and the elders of the people took counsel against Jesus to put him to death. And they bound him and led him away and delivered him over to Pilate the governor. (…) Then he released for them Barabbas, and having scourged Jesus, delivered him to be crucified.
Luke
Then they seized him and led him away, bringing him into the high priest’s house (…) Now the men who were holding Jesus in custody were mocking him as they beat him. They also blindfolded him and kept asking him, “Prophesy! Who is it that struck you?” And they said many other things against him, blaspheming him. When day came, the assembly of the elders of the people gathered together, both chief priests and scribes. And they led him away to their council, and they said, “If you are the Christ, tell us.” But he said to them, “If I tell you, you will not believe, and if I ask you, you will not answer. But from now on the Son of Man shall be seated at the right hand of the power of God.” So they all said, “Are you the Son of God, then?” And he said to them, “You say that I am.” Then they said, “What further testimony do we need? We have heard it ourselves from his own lips.” Then the whole company of them arose and brought him before Pilate. (…) He released the man who had been thrown into prison for insurrection and murder, for whom they asked, but he delivered Jesus over to their will.
John
So the band of soldiers and their captain and the officers of the Jews arrested Jesus and bound him. First they led him to Annas, for he was the father-in-law of Caiaphas, who was high priest that year. (…) The high priest then questioned Jesus about his disciples and his teaching. Jesus answered him, “I have spoken openly to the world. I have always taught in synagogues and in the temple, where all Jews come together. I have said nothing in secret. Why do you ask me? Ask those who have heard me what I said to them; they know what I said.” When he had said these things, one of the officers standing by struck Jesus with his hand, saying, “Is that how you answer the high priest?” Jesus answered him, “If what I said is wrong, bear witness about the wrong; but if what I said is right, why do you strike me?” Annas then sent him bound to Caiaphas the high priest. (…) Then they led Jesus from the house of Caiaphas to the governor’s headquarters. It was early morning. They themselves did not enter the governor’s headquarters, so that they would not be defiled, but could eat the Passover. (…) [Pilate] brought Jesus out and sat down on the judgment seat at a place called The Stone Pavement, and in Aramaic Gabbatha. Now it was the day of Preparation of the Passover. It was about the sixth hour. (…) He delivered him over to them to be crucified.