H-1B visa holders have a 60-day grace period to find a new job, change their visa status, or prepare to leave the US after employment ends. This grace period begins on their last day of work and allows them to maintain their status while they secure a new H-1B transfer or explore other visa options. However, if no action is taken by the end of the 60 days, they must leave the country to prevent unlawful presence. Also, traveling outside the US is not allowed during this grace period.