Based on current information, this claim is untrue. According to a TIME article, investigators suspect that it took less than four minutes for the thieves to enter the museum, steal the jewels, and exit the museum to escape. Employees at the museum have been reporting understaffing since earlier this year. They have claimed that there were "too few eyes on too many rooms" (TIME). This is still a developing case, and there are a lot of unanswered questions, but we can establish that it took less than four minutes for the thieves to enter and exit the museum. ABC News published an article with an estimated timeline of seven minutes for the entire robbery, which included the time it took for the thieves to park their truck and then drive away. However, they also concluded that the thieves would have only spent four minutes in the museum. So overall, this claim is untrue.