You do not need to visit the same time every day. The bathhouse is based on Subeta Time, which is the same as Eastern Standard Time in the United States. The time may also be different depending on daylight savings time. If you are from a different country or have a different time zone, it may already be a new day for you, but the bathhouse may still be in the previous day. I would advise checking the time at the top of your screen for the current Subeta time. Usually dailies reset automatically at 12am.