Same issue here after upgrading to 1.16.100 on Ubuntu Linux 20.04. On version 1.16.40 it was okay.
I run a MCB server at home on a Linux PC and I wrote a bash script if someone connects in the last 10 minutes, my kids and their friends get a notification about a new connection. Now this does not work, actually cannot work without time/date. Hope it will be fixed soon.
Issue persists on 1.16.201.2