@Sue D.
Christ died on Passover sabbath which is 7th day of the week. " end of 14th Day"
Christ rose on third day of the feast of unleavened bread which is 3rd day of the week "end of 17th Day"
Mary Magdalene visited his grave on the first day of the week which is after the last day of the feast of unleavened bread which was on a sabbath "21st Day". " 22nd Day"
Four days prior to when Mary Magdalene visited the tomb Christ had risen "end of 17th Day"
Christ died between the evenings; late afternoon prior to "or around" sunset and the beginning of the 15th day but sill technically it was the 14th day.
Mary Magdalene visited during sunrise early morning on the 22nd Day.
However if you believe to have more accurate information than what i am saying and have already studied it then by all means go with it.
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Mark 16:1 And when the sabbath was past,
Mary Magdalene, and Mary the mother of James, and Salome, had bought sweet spices, that they might come and anoint him.
Mark 16:2 And
very early in the morning the first day of the week, they came unto the sepulchre at the rising of the sun.
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Matthew 12:40 For as Jonas was three days and three nights in the whale's belly; so shall the Son of man be three days and three nights in the heart of the earth.
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John 11:4 When Jesus heard that, he said,
This sickness is not unto death, but for the glory of God, that the Son of God might be glorified thereby.
John 11:13 Howbeit Jesus spake of his death: but they thought that he had spoken of taking of rest in sleep.
John 11:15 And I am glad for your sakes that I was not there, to the intent ye may believe; nevertheless let us go unto him.
John 11:17 Then when Jesus came,
he found that he had lain in the grave four days already.
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Lastly i used John 11 because it conveys something to me in which i already believe.