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Calculating resurrection day, had it taken place in 2017, is a snap.

First off: according to John 18:28 and John 19:13-14, Jesus was crucified on the day when the Jews were slaughtering Passover lambs and roasting them with fire ready to eat by sundown. According to the 12th chapter of Exodus; the date was Nissan 14 on the Jewish calendar; which, in 2017, corresponded to Monday, April 10 on the Gregorian calendar.

Jesus predicted that he would be in the heart of the earth three days and three nights (Matt 12:40).

The preponderance of evidence indicates that his dead body returned to life on the third day rather than during the third night (Matt 17:22-23, Mark 9:31, Luke 9:22, Luke 24:46, Acts 10:40, 1Cor 15:4). So right off the bat we can rule out a nighttime resurrection. I.e.. Christ's dead body revived when the sun was up rather than when the sun was not up.

So then, seeing as how in 2017 Christ would have passed away during the afternoon of Monday, April 10 before sundown; then counting three nights from thence would put his dead body returning to life on Thursday, April 13 before sundown.
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Due to certain women arriving at the cemetery early in the morning on the third day, and thus discovering Jesus' body gone; then we should be pretty safe in concluding that Christ walked out of his grave sometime before noon.

NOTE: There's quite a bit of confusion going around related to the time of the women's arrival at the cemetery; for example Matt 28:1

"In the end of the sabbath, as it began to dawn toward the first day of the week, came Mary Magdalene and the other Mary to see the sepulcher."

The Greek word translated "came" is horribly ambiguous. It can not only mean came, but also went, i.e. it can indicate travel as well as arrival and/or coming as well as going. Here's the same verse from another translation.

"After the Sabbath, at dawn on the first day of the week, Mary Magdalene and the other Mary went to look at the tomb."

Seeing as how the preponderance of evidence indicates that Jesus' dead body revived on the third day rather than during the third night, i.e. when the sun was up rather than when the sun was not up, then it's safe to conclude, in this case at least, that "went" is the appropriate translation of the Greek word erchomai, i.e. the sun was already up by the time the women arrived.

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