Offset
The time difference between Guayaquil and Mountain Time is 1 hour.
Guayaquil (GMT-5) is ahead of Mountain Time (MDT).
GMT-5: UTC-5
MDT: UTC-6
Mountain Time is currently observing daylight saving time; Guayaquil is not.
When to schedule
Business-hours overlap: 10 AM–5 PM in Guayaquil (9 AM–4 PM in Mountain Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 1:00 PM Guayaquil (12:00 PM Mountain Time).
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.
Ecuador
- New Year's DayThu, Jan 1
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Good FridayFri, Apr 3
- International Workers' DayFri, May 1
- The Battle of PichinchaSun, May 24
- Declaration of Independence of QuitoMon, Aug 10
- Independence of GuayaquilFri, Oct 9
- All Souls' DayMon, Nov 2
- Independence of CuencaTue, Nov 3
- Christmas DayFri, Dec 25
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
About these zones
Guayaquil uses Ecuador Time. To call Ecuador, dial +593.
Mountain Time is also known as MST, or MDT. To call United States, dial +1.
Mountain Time is approximately 3,300 miles northwest of Guayaquil.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Guayaquil | MST | Day |
|---|---|---|
| 12:00 am | 11:00 pm | -1 day |
| 1:00 am | 12:00 am | Same day |
| 2:00 am | 1:00 am | Same day |
| 3:00 am | 2:00 am | Same day |
| 4:00 am | 3:00 am | Same day |
| 5:00 am | 4:00 am | Same day |
| 6:00 am | 5:00 am | Same day |
| 7:00 am | 6:00 am | Same day |
| 8:00 am | 7:00 am | Same day |
| 9:00 am | 8:00 am | Same day |
| 10:00 am | 9:00 am | Same day |
| 11:00 am | 10:00 am | Same day |
| 12:00 pm | 11:00 am | Same day |
| 1:00 pm | 12:00 pm | Same day |
| 2:00 pm | 1:00 pm | Same day |
| 3:00 pm | 2:00 pm | Same day |
| 4:00 pm | 3:00 pm | Same day |
| 5:00 pm | 4:00 pm | Same day |
| 6:00 pm | 5:00 pm | Same day |
| 7:00 pm | 6:00 pm | Same day |
| 8:00 pm | 7:00 pm | Same day |
| 9:00 pm | 8:00 pm | Same day |
| 10:00 pm | 9:00 pm | Same day |
| 11:00 pm | 10:00 pm | Same day |
Daylight saving time
Mountain Time observes daylight saving time; Guayaquil 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
- 6:26 AM
- Sunset
- 6:27 PM
- Day length
- 12h
- Sunrise
- 5:48 AM
- Sunset
- 8:25 PM
- Day length
- 14h 37m
Daylight overlap: 11h 38m — 6:48 AM–6:27 PM in Guayaquil (5:48 AM–5:27 PM in Mountain Time). Both locations are in daylight during this window.
Cities in these zones
Other cities in Ecuador Time
Cities in Mountain Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Ecuador Time
- UIO
- GYE
Airports in Mountain Time
- BJC
- DEN
- OGD
- SLC
Related conversions
Common conversions
- What is 9:00 am Guayaquil in MST?
- 9:00 am Guayaquil is 8:00 am MST.
- What is 12:00 pm Guayaquil in MST?
- 12:00 pm Guayaquil is 11:00 am MST.
- What is 12:30 pm Guayaquil in MST?
- 12:30 pm Guayaquil is 11:30 am MST.
- What is 2:00 pm Guayaquil in MST?
- 2:00 pm Guayaquil is 1:00 pm MST.
- What is 5:00 pm Guayaquil in MST?
- 5:00 pm Guayaquil is 4:00 pm MST.
- What is 11:30 pm Guayaquil in MST?
- 11:30 pm Guayaquil is 10:30 pm MST.