Question: Was Jesus in the tomb exactly 72 hours?
Sentence: Others have countered by saying that this ignores the Jewish idiom by which a "day and night" may refer to any part of a 24-hour period, that the expression in Matthew is idiomatic, not a statement that Jesus was 72 hours in the tomb, and that the many references to a resurrection on the third day do not require three literal nights.
Answer in sentence: yes