Sorting by access time in less than one second intervals

[Joel Hammer]

I would like to be able to use a simple bash script to sort files in a
directory by their access times. Unfortunately, the access times are
frequently within one second of each, other, so, they appear to have
the same access times when listed by ls. Is there a way to make ls or
a similar simple bash tool show file times in smaller units?

Thanks,
Joel