In a locality, a water tank has been placed. Five pipes are attached to it that starts filling the tank in the morning at 6 am. Each of them fills the tank at 50 litres per minute. They fill the empty tank completely in 4 hours. Every morning, the tank gets filled only between 6 am to 10 am. Today morning, the tank was empty at 6 am. Between 6 am and 10 am, water is not supplied to locality for use, and during remaining hours water is supplied at 2000 litres per hour till 6 AM next day. At what time the tank will get completely filled again on next day?