2027 time change dates for Iowa
At 2:00 AM the clocks jump straight to 3:00 AM in Iowa. That hour never happens, and everyone loses an hour of sleep.
At 2:00 AM the clocks return to 1:00 AM, so that hour is lived through twice and the night is an hour longer.
Iowa keeps CST in winter and shifts one hour forward for the summer.
Countdown to the next change
Economic Impact of DST in Iowa
The economic effects of Daylight Saving Time in Iowa are real but modest, and studies disagree on their size. Retailers and hospitality businesses generally favour DST, arguing that lighter evenings encourage shopping, dining out and other after-work spending — the US retail lobby was one of the main forces behind the 2005 extension of the DST period.
The transitions themselves carry a cost. Research from Chmura Economics has put the one-off economic cost of the spring change in the United States at roughly $430 million a year, driven by lost productivity, workplace injuries and the health effects of a disrupted night's sleep.
Agricultural Considerations
The story that DST was introduced for farmers has it exactly backwards. Farmers in Iowa and elsewhere were among its most persistent opponents, and the American farm lobby successfully campaigned to have national DST repealed after the First World War.
The reason is straightforward: farm work follows the sun, not the clock. Moving the clock forward just means doing the same work an hour earlier by the clock, while deliveries, markets and hired labour all shift with it. Dairy farmers make the point most often, since cows keep to their own schedule and take several days to adjust to a changed milking time.
Background
- Benjamin Franklin is often credited with inventing DST, but his 1784 essay was satire — he joked that Parisians could save candles by waking earlier. The modern proposal came from New Zealander George Hudson in 1895 and Briton William Willett in 1907.
- The Energy Policy Act of 2005 extended US DST by four weeks starting in 2007, moving the start to the second Sunday in March and the end to the first Sunday in November.
- The European Parliament voted in 2019 to end mandatory clock changes, but member states never agreed on which time to keep, so the change has stalled indefinitely.
Tips for Iowa
Be extra cautious driving the Monday after the spring time change - accident rates increase.
Update your car clock, microwave, and other manual clocks that don't auto-update.
Consider the time change when scheduling meetings with people in other time zones.
Take advantage of the 'extra' hour in fall to catch up on sleep or tackle a project.
Frequently asked questions
When do the clocks change in Iowa in 2027?
Clocks go forward on Sunday, March 14, 2027 and back on Sunday, November 7, 2027.
Which way do the clocks go?
"Spring forward, fall back" is the usual mnemonic: forward one hour in spring, back one hour in autumn.
Do I have to change anything myself?
Phones, computers and anything that syncs over the internet update on their own. Car clocks, ovens, microwaves and older wall clocks generally do not.
Is Daylight Saving Time being scrapped?
It has been proposed in many places and adopted in few. The European Parliament voted in 2019 to end mandatory clock changes and the change has stalled; in the United States the Sunshine Protection Act has repeatedly passed the Senate without becoming law. Most of the world that changes its clocks is still changing them.