Mexico City GuarulhosTime Converter

Mexico City (CST, UTC−6) is currently 3 hours behind Guarulhos (BRT, UTC−3). Compare live clocks, convert any hour, and find times to meet.

Live DST-aware Shareable URLs
 
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Quick answer

When it's in Mexico City, it's the same day in Guarulhos.

Mexico City (CST) runs 3 hours behind Guarulhos (BRT). Both sides keep standard office hours with a real 9–6 overlap — the highlighted window below works for everyone.

Time difference
+3h 00m
Mexico City
UTC−6
Guarulhos
UTC−3
Best call window
9:00 AM CST
Hour by hour

Mexico City to Guarulhos conversion table

The next 12 hours in Mexico City and the matching local time in Guarulhos. The current hour is highlighted; drag the converter's slider and the table follows.

Hourly conversion from Mexico City to Guarulhos
Mexico City · CST Guarulhos · BRT Guarulhos status
NOW
Mon, Jun 22
Mon, Jun 22
DayWork hours
Mon, Jun 22
Mon, Jun 22
DayWork hours
Mon, Jun 22
Mon, Jun 22
DayWork hours
Mon, Jun 22
Mon, Jun 22
DayWork hours
Mon, Jun 22
Mon, Jun 22
DayWork hours
Mon, Jun 22
Mon, Jun 22
DayWork hours
Mon, Jun 22
Mon, Jun 22
DayWork hours
Mon, Jun 22
Mon, Jun 22
DayWork hours
Mon, Jun 22
Mon, Jun 22
Night
Mon, Jun 22
Mon, Jun 22
Night
Mon, Jun 22
Mon, Jun 22
Night
Mon, Jun 22
Mon, Jun 22
Night
Meeting planner

Best time to meet between Mexico City & Guarulhos

Working hours are 9am–6pm in each city. The bright band is where they overlap — when both sides are at their desks.

Mexico City CST
Guarulhos BRT
Both in business hours Business hours (9–18) Morning / evening Night Now
Best time for a call or meeting: between 9:00 AM and 3:00 PM in Mexico City, which is 12:00 PM–6:00 PM in Guarulhos — both sides are inside normal business hours (9:00 AM – 6:00 PM).
Good to know

This time difference never changes

Neither side observes daylight saving against the other, so the gap stays constant all year. Mexico City does not observe daylight saving time. Guarulhos does not observe daylight saving time. This page always shows the live, DST-aware difference.

Built for humans and machines

One source of truth — for you and your AI

This page exposes the same answer as structured data, so when you ask an assistant "what's 9am Mexico City time in Guarulhos?", it can cite the exact, DST-aware result — not a stale blog post.

  • Schema.org JSON-LD on every converter page
  • A machine-readable facts island with IANA zones and every possible offset
  • Live times in <time datetime> elements with explicit UTC offsets
JSON #timezone-pair-data · embedded in this page
{
  "pair": "Mexico City → Guarulhos",
  "url": "https://worldclock.pro/en/convert/mexico-city-to-guarulhos",
  "from": {
    "name": "Mexico City",
    "type": "city",
    "abbreviation": "CST",
    "daylightAbbreviation": "CDT",
    "iana": "America/Mexico_City",
    "standardUtcOffset": "-06:00",
    "daylightUtcOffset": null,
    "referenceCity": "Mexico City"
  },
  "to": {
    "name": "Guarulhos",
    "type": "city",
    "abbreviation": "BRT",
    "daylightAbbreviation": null,
    "iana": "America/Sao_Paulo",
    "standardUtcOffset": "-03:00",
    "daylightUtcOffset": null,
    "referenceCity": "Guarulhos"
  },
  "currentDifferenceMinutes": 180,
  "possibleDifferencesMinutes": [
    180
  ],
  "note": "The difference is constant year-round."
}

Frequently asked questions

What is the time difference between Mexico City and Guarulhos?

Mexico City is currently 3 hours behind Guarulhos. Mexico City is on CST (UTC−6) and Guarulhos is on BRT (UTC−3). The difference can change when either side starts or ends daylight saving time.

Is Guarulhos ahead of or behind Mexico City?

Guarulhos is currently 3 hours ahead of Mexico City.

When it is 9:00 AM in Mexico City, what time is it in Guarulhos?

When it is 9:00 AM on a Monday in Mexico City, it is 12:00 PM in Guarulhos.

Do Mexico City and Guarulhos observe daylight saving time?

Mexico City does not observe daylight saving time. Guarulhos does not observe daylight saving time.

How do I convert Mexico City time to Guarulhos time?

Add 3 hours to any time in Mexico City to get the time in Guarulhos. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.

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