The analytics are not always accurate. I have students who said they last accessed yesterday but they were on with me on zoom. For others it's current. Having a 24 hour delay is not helpful.
Multiple times, the Schoology analytics have not been accurate many many times and days. I have had cases where the analytics showed the student had not logged in for 1-2 days, yet they were on Zoom calls with me the whole day! So strange and appears not to be a veritable measure.