I am not sure what your local timezone is, but please try setting the timezone in the Scheduler to something that results in "Today" being a different day than your own. E.g. for me my local timezone is Australia/Victoria and it is Monday 29/05. In the timezone America/Vancouver it is currently Sunday 28/05. If I set up the Scheduler with useLocalTimezone false and with the timezone set to America/Vancouver then click "Today", it shows me Monday 29/05. If I manually change to 28/05 the current time marker is in the correct place, but the day I'm sent to as "Today" is incorrect.