Are the photos from multiple cameras with different times or timezone settings so they are in order as far what the embedded time but the cameras are embedding the wrong time(s)? You should be able to verify this by turning on loupe information that includes the capture time and then click through them one by one and see if the time does indeed increase (or decrease if you have the order direction set (Z-A) from one to the next, or if the times don’t appear to be in order.
There are ways to adjust the capture time but if it is only wrong for some of the photos then you’ll want to segregate the ones that are ok from the ones that need corrected. You should also determine exactly how many seconds the time is off from eacg camera relative to the other(s), if it is just a timezone problem where it’s an hour or some other multiple of minutes or seconds off.