Why the day turns at 5am New York time
3 November 2026
A daily game lives or dies on everyone having the same puzzle on the same day. If the chart changed at local midnight, a player in London could share a grid that a player in Los Angeles could not yet see, and the conversation that a daily game is built on would fall apart. So there is one chart at a time, for everyone, and it changes at one instant.
That instant used to be midnight in Coordinated Universal Time, which is eight in the evening in New York and five in the afternoon in California. A daily that turns over during the evening is a daily that interrupts people. Someone starting the chart after dinner could find it replaced while they were still thinking.
Five in the morning, New York time, is the quiet hour. Almost nobody is mid-solve, the chart is waiting when people on the American east coast wake up, and it has been up for hours by the time Europe is at lunch. For players further east it falls in the evening, which is a reasonable time to have a new chart arrive.
It is still one instant for everyone. A player in Tokyo rolls over at the same moment as a player in New York; they just read a different wall clock. The chart numbers did not change when the boundary moved, and a chart is filed under the same date wherever you are. The only thing that moved is the answer to the question “which day is it right now?”.
The rollover follows New York’s clock through daylight saving, so it is five in the morning there all year round, and the time until the next chart is shown at the bottom of every finished day.