Mexicali in numbers
- Coordinates
- 32.6278, -115.4540
- Population
- 1 032 686
- Region
- Baja California
- Country
- Mexico, North America
- Capital
- Mexico City — 2189 km away
- Same name
- 4 more places in the world share this name
Mexicali uses Pacific Time with the California side of this valley: PST in the colder months and PDT after the spring jump. This page is the city’s hour, with sunrise, sunset, and desert weather.
Mexicali, Mexico
Friday, 4 September 2026
UTC−7 · America/Tijuana
Local time in Mexicali
UTC−7 · daylight saving time is active
Sunrise 06:20 Solar noon 12:42 Sunset 19:05 Daylight 12 h 45 min Night 11 h 15 min Civil twilight 05:55 – 19:30
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Weather data by Open-Meteo, updated every 30 minutes.
Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.
Mexicali is the capital of Baja California, Mexico, in the desert valley opposite Calexico, California. It does not keep a state-capital hour that you can copy from inland Mexico. Official clocks here follow Pacific Time, aligned with the United States side of this crossing: Pacific Standard Time in the colder months and Pacific Daylight Time once the border springs forward. Computers usually store that pair as America/Tijuana. That identifier is the one to pick. A menu that only offers “Mexico” or “Mexico City” can land you on the wrong stamp.
Most of Mexico no longer changes clocks with the seasons. Mexicali is in the northern border zone that still follows the United States Pacific pattern. Clocks jump forward one hour on the second Sunday in March and back one hour on the first Sunday in November, in step with California. A meeting stored as “11:00 Mexicali” in a calendar that understands America/Tijuana will move correctly when the offset changes. A meeting stored as a frozen UTC-8 number will not.
If you are writing times by hand through the changeover weekend, name the offset or name the zone, not only the numerals. The 02:00 hour in spring does not exist. The 02:00 hour in autumn happens twice. Night-shift rotas and automated jobs have to say which one they mean.
A walk to Calexico does not require a watch change when both sides are on Pacific Time. It requires a crossing. A drive toward Tijuana stays on the same pair. A drive deep into Mexico toward a city on the central stamp does not: much of the interior keeps a different offset and does not jump. Convert through named zones. “Mexico time” is how people miss this border exception.
Winter: PST, UTC-8. Summer: PDT, UTC-7. Computer name: America/Tijuana — Pacific Time for this Baja California city. Not Mexico City time, and not a year-round interior stamp. Pacific Time is built on the 120°W meridian. Mexicali sits east of that line, so solar noon can come before 12:00 under standard time. In daylight time the legal hour is tied even farther east, so the sun peaks still earlier against the wall. That is ordinary desert timekeeping on a Pacific stamp. It is not a fast clock. Print PST or PDT according to the season. If the outing is about actual daylight, read Mexicali sunrise here.
The fence is a border. In this valley it is not a winter hour. Calexico and Mexicali already share Pacific Time.
Because Mexicali is well north of the tropics, day length changes through the year. Midwinter cuts the afternoon short; midsummer leaves the valley lit late. The sun times on this page move with the date. They are worth checking if you are timing a morning outdoors. They are not a printed timetable you can reuse next month. Do not copy a Tijuana coastal sunrise onto this inland valley, even though both cities share the Pacific pair.
The climate is a hot desert climate. Summer heat can make midday the least useful part of the working day even while offices are open on PDT. Winter mornings can be clear and sharp. Wind, dust, and heat do not reprint the offset. Calculated sunrise can happen behind a brown sky. The minute on the page is still the geometric event. The weather block is Mexicali’s present sky. It is not a climate postcard and not a promise about the evening commute.
Partners in central Mexico, China, or West Africa will not jump with Mexicali. When PDT begins, the gap to those places changes by an hour even though they did nothing. If a weekly call with Mexico City or Shanghai suddenly feels worse, check whether this valley just sprang forward. Store the event in America/Tijuana so the Mexicali side of the display stays at the local hour you intended.
Write “11:00 Mexicali (PST)” or “11:00 Mexicali (PDT)” according to the season, or write America/Tijuana and let the calendar choose. CST is a trap in international mail: in a Chinese context it means UTC+8; in North America it means a different belt. City plus offset survives a pasted row; the three letters often do not.