When you open Real Time > Real Time Menu without a date, Sprwt looks for the first open delivery date from today whose weekday is a Realtime fulfilment day and shows that. If today is not a fulfilment day (or its date is closed/finished) you land on the next valid date. Pick another date from the calendar, which only offers fulfilment weekdays; enable more days in Real Time > Settings if the one you need is missing.