The 2019 NBA Draft takes place on Thursday, June 20th. It will be held at the home of the Brooklyn Nets, or the Barclays Center. The event kicks off at 7:00 pm and will run until all the picks are made, but according to TVguide.com, ESPN has the 7:00pm-12: 30 am period blocked off for the event.
The Draft order and When the Miami Heat Select
In terms of when teams actually draft, the complete order for both rounds one and two can be found here via NBA.com. The Miami Heat actually only have one selection at the time of this piece, where they pick at 13.