What timestamp?
No, and no.
Consider this example:
If primate 1 has somewhere in it’s genome, the gene sequence:
AAAGTTT
and if primate 2 has in a corresponding location in it’s genome, the gene sequence:
AAAGCTT
Then clearly no deletion explains the difference, a substitution does. The substitution of T for C, or the reverse.
That means in one of those primate lineages, either T had to change to C, or C change to T by a substitution mutation, right?
Now you could proceed to compare the two total genome sequences (billions of bases) of those two primates 1 and 2, and find all their differences across their respective genomes(millions of differences out of billions of shared bases). Those have to occur by mutation, right? Many of these will have to be substitutions, where a letter changed. Some will have to be duplications or deletions too.
But Sanford et al thinks there’s a huge “waiting time problem”, and they calculate that it would take much, much too long for even two specific mutations to occur and fix in some lineage.
But then their primates can’t share common descent since they left Noah’s ark(there’s not enough time for all those mutations that separate chimps from gorillas, or chimps from orangutans, or orangutans from rhesus monkeys, or baboons from orangutans etc.)
So now they all have to be on the ark, and the problem extends to all animals in the entire world. Find any two animals from some “kind”, find genetic differences between them(dogs vs wolves, lions vs tigers, etc.) and then calculate the “waiting time problem”, and suddenly you realize if this waiting time problem is real then nothing could have evolved at all because it would just take absurdly huge times for even a small handful of such mutations. Rats and mice can’t be related, differen’t breeds of cats can’t be related (not enough time for their differences to occur and fix).
So something has to give. Either the “waiting time problem” is based on some fundamental misunderstanding(specific sets of mutations rather than just the number of them), or all extant species of animals have to be on the ark. All the millions of them. Or lots of miracles, lots and lots and lots of miracles have to occur. God running around zapping up mutations like a madman I guess. You can always go there and solve any imaginable problem with that, so take your pick.