Trump sets Iran deadline on Strait of Hormuz

U.S. President Donald Trump said Iran must open the Strait of Hormuz by Tuesday evening, April 7, 2026, warning that failure to do so would bring U.S. military action aimed at what he described as Iran’s critical infrastructure. He set out the deadline in an interview published Sunday, April 5, 2026, and framed the ultimatum as a direct response to the strait remaining closed amid rising regional tensions.

In the interview, Trump said Iran would risk losing “power plants and bridges” if it did not comply by the stated time. He later amplified the message on social media with a post reading, “Tuesday, 8:00 P.M. Eastern Time!” without naming Iran or adding details. Earlier on Sunday, he had indicated that infrastructure strikes would occur if the strait was still closed by Tuesday, but he had not provided a specific hour.

The Strait of Hormuz is widely regarded as a key maritime chokepoint for global oil shipments, making any disruption there a focal point for energy markets and international diplomacy. The ultimatum, as described by Trump, places a clear time marker on U.S. demands and ties compliance to the avoidance of military action, while leaving unanswered questions about the scope, targets, and legal framing of any potential operation.

Officials at the White House were not immediately available to comment on the social media post, according to the account of events. That lack of immediate clarification adds uncertainty for governments, shipping interests, and market participants seeking to understand whether the message signals imminent action, a negotiating posture, or a combination of both.

Beyond the immediate U.S.-Iran standoff, the episode underscores how quickly developments around the Strait of Hormuz can become a global issue because of the route’s role in oil transport. The administration’s demand comes as tensions in the region have escalated, and Trump’s public deadline sets expectations for what could happen next while also narrowing the window for de-escalation before Tuesday evening.

Key unknowns remain based on the information provided so far: the precise status and nature of the strait’s closure, what steps would satisfy the U.S. demand to “open” it, and how Iran might respond to the ultimatum. With the deadline now specified as Tuesday at 8:00 P.M. Eastern Time, attention is likely to stay fixed on official statements and any operational signals in the days leading up to April 7.