I think meta needs some more detail around this, so I'll copy my answer from here:
It's not a different cut-off time, but
rather how we calculate it, for
"today" we count up the votes that
happened today, where as with a week
we track the net change throughout the
I'm going to look at changing this
tomorrow (so that the day does the
same as other intervals). There are
pros/cons on both solutions, but the
consistency might be worth it here.
Here's the common case that leads to
this: A vote is deleted or undeleted
that was previously created, this
makes display a bit wacky since we
don't show removed votes, or
undeleted votes in the time they had
the net effect, let's take an example:
- May: someone votes your post up, +10
- your rep goes up 10 for the week, month, etc.
- June: say you edited later, someone removes that vote (or unaccepts an
- your rep goes down 5/10/15, etc for the week, month, etc.
Now from the day point of view
(strictly looking at that range), your
rep hasn't changed, no vote happened
then. However, there was a net effect on your rep, it's just that the
10 rep was removed (looking overall)
back in may...or rather it no longer
We're not done with this, we're still refining the display, there will be more improvements this week, but I can't say for certain which direction they'll go...since it's not a simple temporal problem, both to calculate and display.