"What time zone is Texas in?" has two correct answers. Houston, Dallas and Austin are on Central Time, while El Paso is on Mountain Time, an hour behind the rest of the state. Florida, Kentucky, Tennessee, Michigan and nine other states work the same way:

Israel's clocks now fall back on the same day the European Union's do, the last Sunday of October, a deliberate alignment written into a 2013 law. But the two systems still don't match. Israel springs forward on the Friday before the EU's last Sunday of

North Korea turned its clocks back 30 minutes on August 15, 2015, breaking from South Korea and Japan to create its own "Pyongyang Time," then reversed the entire move less than three years later, on May 5, 2018, realigning with Seoul again. Both changes were

India runs on a single clock from the Arabian Sea to the Myanmar border, a stretch of roughly 3,000 kilometers, and that clock sits at a UTC offset almost nobody outside the region can round off in their head. UTC+5:30 isn't a rough approximation or

Twice in the last stretch of 2026, the NYSE and Nasdaq will stop trading three hours ahead of schedule. The bell rings at 1:00 PM Eastern instead of 4:00 PM, and a session that normally runs 6.5 hours gets squeezed into 3.5. Anyone with a

The ex-dividend date, not the payment date, decides whether you actually receive a company's next dividend. Buy a stock on or after its ex-date and the payment goes to the person who sold it to you, no matter how soon the cash is scheduled to

On April 7, 2025, the S&P 500 swung 8.5% in a single session, one of the widest intraday ranges since March 2020. It closed down just 0.2%. No circuit breaker fired. Five years earlier, in March 2020, the same index tripped the exact same 7%

Every IPO photo looks the same: executives on a balcony, a giant chrome button, the 9:30 AM bell. What that photo doesn't show is that the stock almost never starts trading at 9:30. Facebook was supposed to open at 11:00 in 2012 and didn't trade