According to man fstab
The *atime options can be used to reduce writes, which is useful on devices with low write speed compared to read speed or limited write cycles (like SSDs). Also, some applications may need it. Default options are fine most of the time, but I don't know your specific case. From man mount
use default options: rw, suid, dev, exec, auto, nouser,
So it seems default already.
Update inode access times relative to modify or change time.
Access time is only updated if the previous access time was ear‐
lier than the current modify or change time. (Similar to noat‐
ime, but doesn't break mutt or other applications that need to
know if a file has been read since the last time it was modi‐
Since Linux 2.6.30, the kernel defaults to the behavior provided
by this option (unless noatime was specified), and the stricta‐
time option is required to obtain traditional semantics. In
addition, since Linux 2.6.30, the file's last access time is
always updated if it is more than 1 day old.