Offset
The time difference between Mountain Time and Cancún is 1 hour.
Mountain Time (MDT) is behind Cancún (EST).
MDT: UTC-6
EST: UTC-5
Mountain Time is currently observing daylight saving time; Cancún is not.
When to schedule
Business-hours overlap: 9 AM–4 PM in Mountain Time (10 AM–5 PM in Cancún).
Both teams are in working hours during this window on weekdays.
Suggested time: 12:00 PM Mountain Time (1:00 PM Cancún).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
Mexico
- New Year's DayThu, Jan 1
- Constitution DayMon, Feb 2
- Benito Juárez's birthdayMon, Mar 16
- Maundy ThursdayThu, Apr 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- Independence DayWed, Sep 16
- Revolution DayMon, Nov 16
- Christmas DayFri, Dec 25
About these zones
Mountain Time is also known as MST, or MDT. To call United States, dial +1.
Cancún uses Eastern Standard Time. To call Mexico, dial +52.
Cancún is approximately 1,650 miles southeast of Mountain Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| MST | Cancún | Day |
|---|---|---|
| 12:00 am | 1:00 am | Same day |
| 1:00 am | 2:00 am | Same day |
| 2:00 am | 3:00 am | Same day |
| 3:00 am | 4:00 am | Same day |
| 4:00 am | 5:00 am | Same day |
| 5:00 am | 6:00 am | Same day |
| 6:00 am | 7:00 am | Same day |
| 7:00 am | 8:00 am | Same day |
| 8:00 am | 9:00 am | Same day |
| 9:00 am | 10:00 am | Same day |
| 10:00 am | 11:00 am | Same day |
| 11:00 am | 12:00 pm | Same day |
| 12:00 pm | 1:00 pm | Same day |
| 1:00 pm | 2:00 pm | Same day |
| 2:00 pm | 3:00 pm | Same day |
| 3:00 pm | 4:00 pm | Same day |
| 4:00 pm | 5:00 pm | Same day |
| 5:00 pm | 6:00 pm | Same day |
| 6:00 pm | 7:00 pm | Same day |
| 7:00 pm | 8:00 pm | Same day |
| 8:00 pm | 9:00 pm | Same day |
| 9:00 pm | 10:00 pm | Same day |
| 10:00 pm | 11:00 pm | Same day |
| 11:00 pm | 12:00 am | +1 day |
Daylight saving time
Mountain Time observes daylight saving time; Cancún does not. The offset between the two zones changes when Mountain Time transitions: on Sunday, November 1, 2026, clocks fall back from MDT to MST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:33 AM
- Sunset
- 8:28 PM
- Day length
- 14h 56m
- Sunrise
- 6:06 AM
- Sunset
- 7:30 PM
- Day length
- 13h 24m
Daylight overlap: 12h 57m — 5:33 AM–6:30 PM in Mountain Time (6:33 AM–7:30 PM in Cancún). Both locations are in daylight during this window.
Cities in these zones
Cities in Mountain Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Mountain Time
- BJC
- DEN
- OGD
- SLC
Airports in Eastern Standard Time
- CUN
Related conversions
Common conversions
- What is 9:00 am MST in Cancún?
- 9:00 am MST is 10:00 am Cancún.
- What is 12:00 pm MST in Cancún?
- 12:00 pm MST is 1:00 pm Cancún.
- What is 12:30 pm MST in Cancún?
- 12:30 pm MST is 1:30 pm Cancún.
- What is 2:00 pm MST in Cancún?
- 2:00 pm MST is 3:00 pm Cancún.
- What is 5:00 pm MST in Cancún?
- 5:00 pm MST is 6:00 pm Cancún.
- What is 11:30 pm MST in Cancún?
- 11:30 pm MST is 12:30 am Cancún, the next day.