This is a very interesting subject.
It depends on your interpretation on the accounts of the Death of Christ. Because we must decide how to understand the slight contradiction on the dates. In John 19, Christ dies in the preparation to the Passover, at the time the high priest was killing the lamb. This arises a small contradition with the synoptic gospels, it is said on the day of the feast of the unleavened bread, which implies the next day. This is difficult to resolve, but not impossible, Jews from Galilee had the custom of marking the beggining of the day at dawn of Thursday, and not at the dusk, therefore, Jesus and his galilean disciples were just following their customs.
So, assuming Joanine chronology, we must find a year whitin the reign of Tiberius, where Nisan 14 falls in a friday. And it happens that 33 AD is the best candidate, moreover, there was a lunar eclipse on that same day, which would explain some of the phenomena told in the gospel accounts.
This is obviously (as any chronology) disputed, But I find a rather ingenious calculation, and it was first proposed by no one more than Isaac Newton!
On the date of birth of Our Lord, we are in much worse state, as it would be expected. The gospel of Luke says: “ἀρχόμενος ὡσεὶ ἐτῶν τριάκοντα”, beggining at about thirty years old, which can mean a window from 28 to 33 years for the beggining of his ministry, Luke was not sure about the exact age (perhaps not even Mary, who may have been Luke’s source for these early accounts, and in a place wihtout baptism certificates and social security numbers, some dates must have been hard to track). so we can’t take this 30 years at face value. On the duration of his ministry, I would say 3 years is inferred from John, but it may well vary.