available. Andreas Köstenberger argues that in the first century time was often estimated to the closest three-hour mark, and that the intention of the author of the Mark Gospel was to provide the setting for the three hours of darkness while the Gospel of John seeks to stress the length of the proceedings, starting in the 'early morning'" Some scholars have argued that it is unlikely that the many events of the Passion could have taken place in the span from midnight to about 9 o'clock in the morning. William Barclay has argued that the portrayal of the death of Jesus in the John Gospel is a literary construct, presenting the crucifixion as taking place at the time on the day of Passover when the sacrificial lamb would be killed, and thus portraying Jesus as the Lamb of God. This understanding fits with Old Testament typology, in which Jesus entered Jerusalem to identify himself as the Paschal lamb on Nisan 10 was crucified and died at 3:00 in the afternoon of Nisan 14, at the same time the High Priest would have sacrificed the Paschal lamb, and rose before dawn the morning of Nisan 16, as a type of offering of the First Fruits. Colin Humphreys' widely publicised "double passover" astronomical analysis, published in 2011 and outlined above, places the time of death of Jesus at 3pm on 3 April AD 33 and claims to reconcile the Gospel accounts for the "six days" leading up to the crucifixion. His solution is that the synoptic gospels and John's gospel use two distinct calendars (the official Jewish lunar calendar, and what is today the Samaritan lunar calendar, the latter used in Jesus' day also by the Essenes of Qumran and the Zealots). Humphrey's proposal was preceded in 1957 by the work of Annie Jaubert who suggested that Jesus held his Last Supper at Passover time according to the Qumran solar calendar. Humphreys rejects Jaubert's conclusion by demonstrating that the Qumran solar reckoning would always place Jesus' Last Supper after the Jewish Passover, in contradiction to all four gospels. Instead, Humphreys points out that the Essene community at Qumran additionally used a lunar calendar, itself evidently based on the Egyptian liturgical lunar calendar. Humphreys suggests that the reason why his two-calendar solution had not been discovered earlier is (a) widespread scholarly ignorance of the existence of the Egyptian liturgical lunar calendar (used alongside