Blog
Guides to time zones, Daylight Saving Time, and scheduling across countries.
Why Do We Have Daylight Saving Time in the First Place?
Not Benjamin Franklin, and definitely not farmers. The real story runs through a New Zealand bug collector, a London builder, and a wartime coal shortage.
August 21, 2026
Tennessee's Time Zone Split: Why Nashville and Knoxville Are an Hour Apart
Sixty-five Tennessee counties are on Central Time and thirty are on Eastern. The line follows the Cumberland Plateau - and Knoxville put itself there in 1946.
August 21, 2026
What Time Zone Is Each US State In? All 50 States
A complete state-by-state list of US time zones, including the fourteen states split across two zones and the places that quietly keep a different clock.
August 21, 2026
When Do the Clocks Change in 2026? (And Is This the Last Time?)
Daylight Saving Time ends at 2am on Sunday, November 1, 2026. Here is exactly what happens, who sits it out, and why this year's change is worth paying attention to.
August 21, 2026
Did Daylight Saving Time Just Become Permanent? What the 2026 House Vote Actually Did
The House passed the Sunshine Protection Act 308-117 in July 2026. Here is what that changes, what it doesn't, and why your clocks are still going back on November 1.
August 21, 2026
US Time Zones Explained: Every Zone, Every Split State, Every DST Exception
The United States has nine official time zones, fourteen states split across two of them, and a handful of places that never change their clocks at all. Here is the whole map in one place.
August 21, 2026
US Federal Holidays 2026–2036: Full List, Every Year
All 11 US federal holidays, actual and observed dates, for every year from 2026 through 2036 — computed directly from the legal rules, not copied from a calendar that might drift out of date.
August 11, 2026
Oregon and Idaho: Where the Time Zone Line Ignores the State Line
One Oregon county runs on Idaho's clock, and Idaho itself is split in two. Here's how the boundaries actually line up.
August 11, 2026
Michigan and Kentucky's Time Zone Divide, Explained
A grassroots push for more evening daylight moved Michigan east; Louisville's economic pull moved eastern Kentucky the same way. Two different stories, same result.
August 11, 2026
Nebraska, Kansas, and the Dakotas: The Quietly Split States
Four more states are split between Central and Mountain time — and Nebraska's boundary is currently the subject of an active legislative push to redraw it.
August 11, 2026
Why Doesn't the Whole US Just Use One Time Zone?
China is nearly the same width as the US and uses just one time zone. Here's why the US made the opposite choice, and what the trade-off actually is.
August 11, 2026
The Navajo Nation's Own Time Zone Story (It's Not Just About Arizona)
The Navajo Nation observing DST isn't an exception carved out from Arizona's rule — it's a sovereign nation keeping its own three-state territory on one clock.
August 11, 2026
Alaska's Time Zone History: From Four Zones to Two
Until 1983, Alaska spanned four time zones. Here's how a dispute over the state capital ended up consolidating them into two.
August 11, 2026
Texas Has Two Time Zones — Here's Where the Line Falls
El Paso and Hudspeth County run on Mountain Time while the rest of Texas is on Central — a split that took a decades-long dispute to become official.
August 11, 2026
The Four Corners Monument Time Zone Quirk (It's Not What You've Heard)
The popular claim that three time zones converge at Four Corners doesn't hold up. Here's what's actually going on, and where the real time discontinuity is.
August 11, 2026
Do US Territories Observe Daylight Saving Time? (Puerto Rico, Guam, Samoa & More)
Puerto Rico, Guam, American Samoa, and the rest of the US territories all skip Daylight Saving Time entirely. Here's how their time zones actually work.
August 11, 2026
Which US States Are Split Across Two Time Zones? (Full List)
Fourteen US states aren't fully inside one time zone. Here's the complete list, where each line actually falls, and why state names alone can't be trusted for scheduling.
August 11, 2026
How Many Time Zones Does the US Actually Have? (Most People Get This Wrong)
Four? Six? By federal law, the US and its territories actually use nine standard time zones. Here's the full breakdown, including the ones almost everyone forgets.
August 11, 2026
Why Does Florida Have Two Time Zones?
Most of Florida runs on Eastern Time, but the western Panhandle uses Central Time instead. The dividing line follows a river most people have never heard of.
August 11, 2026
Indiana's Confusing Time Zone History (And Why It's Split in Two Today)
Indiana didn't adopt statewide Daylight Saving Time until 2006 — before that, only about 10 counties observed it. Here's how the state ended up split between Eastern and Central time.
August 11, 2026
Why Hawaii Doesn't Observe Daylight Saving Time (And the Two Times It Did)
Hawaii tried DST in 1933 and dropped it after three weeks. Here's why its near-equator location means the clock change never made much sense.
August 11, 2026
Why Arizona Doesn't Observe Daylight Saving Time (Except One Corner of It)
Arizona stays on Mountain Standard Time year-round — except the Navajo Nation, which observes DST anyway, and the Hopi Reservation inside it, which doesn't. Here's how it actually works.
August 11, 2026
IST vs EST vs GMT: A Plain-English Guide to the World's Most Confusing Time Zone Abbreviations
IST can mean three different countries, EST only applies half the year, and GMT isn't quite the same as UTC. Here's how to actually keep them straight.
August 11, 2026