Yes, and a cycle of lightness/darkness somewhere not necessarily 24 hours could even be… billions of hours, or years…
The literal 7 twenty-four hour days is a firm point in much of creationism science. I think it would have to find some other reasoning for this position.
Perhaps the literal 24-hours is the "missing link" weakness in the creation science argument. Which makes sense because "creation science" is a man-made tool, and thus subject to error.
To be clear, the creation account itself is God-given, from the Bible. The attempts to explain it in a scientific form, however, is a human attempt.