Offset
The time difference between Boise and Santiago is 2 hours.
Boise (MDT) is behind Santiago (CLT).
MDT: UTC-6
CLT: UTC-4
Boise is currently observing daylight saving time; Santiago is not.
When to schedule
Business-hours overlap: 9 AM–3 PM in Boise (11 AM–5 PM in Santiago).
Both teams are in working hours during this window on weekdays.
Suggested time: 12:00 PM Boise (2:00 PM Santiago).
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
Chile
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Holy SaturdaySat, Apr 4
- Labour DayFri, May 1
- Navy DayThu, May 21
- National Day of Indigenous PeoplesSun, Jun 21
- Saint Peter and Saint PaulMon, Jun 29
- Our Lady of Mount CarmelThu, Jul 16
- Assumption of MarySat, Aug 15
- National holidayFri, Sep 18
- Army DaySat, Sep 19
- Columbus DayMon, Oct 12
- Reformation DaySat, Oct 31
- All Saints DaySun, Nov 1
- Immaculate ConceptionTue, Dec 8
- Christmas DayFri, Dec 25
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Boise | Santiago | Day |
|---|---|---|
| 12:00 am | 2:00 am | Same day |
| 1:00 am | 3:00 am | Same day |
| 2:00 am | 4:00 am | Same day |
| 3:00 am | 5:00 am | Same day |
| 4:00 am | 6:00 am | Same day |
| 5:00 am | 7:00 am | Same day |
| 6:00 am | 8:00 am | Same day |
| 7:00 am | 9:00 am | Same day |
| 8:00 am | 10:00 am | Same day |
| 9:00 am | 11:00 am | Same day |
| 10:00 am | 12:00 pm | Same day |
| 11:00 am | 1:00 pm | Same day |
| 12:00 pm | 2:00 pm | Same day |
| 1:00 pm | 3:00 pm | Same day |
| 2:00 pm | 4:00 pm | Same day |
| 3:00 pm | 5:00 pm | Same day |
| 4:00 pm | 6:00 pm | Same day |
| 5:00 pm | 7:00 pm | Same day |
| 6:00 pm | 8:00 pm | Same day |
| 7:00 pm | 9:00 pm | Same day |
| 8:00 pm | 10:00 pm | Same day |
| 9:00 pm | 11:00 pm | Same day |
| 10:00 pm | 12:00 am | +1 day |
| 11:00 pm | 1:00 am | +1 day |
Daylight saving time
Both zones observe daylight saving time, but they transition on different dates.
Boise: next transition on Sunday, November 1, 2026.
Santiago: next transition on Sunday, September 6, 2026.
Boise and Santiago are in opposite hemispheres, so their clocks change in opposite directions about six months apart — one springs forward while the other falls back. The offset between them therefore shifts twice a year and can swing by up to two hours across the seasons, more than a typical same-hemisphere pair. Recurring meetings will need re-checking after each transition.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:05 AM
- Sunset
- 9:24 PM
- Day length
- 15h 20m
- Sunrise
- 7:42 AM
- Sunset
- 5:43 PM
- Day length
- 10h
Daylight overlap: 9h 38m — 6:05 AM–3:43 PM in Boise (8:05 AM–5:43 PM in Santiago). Both locations are in daylight during this window.
Airports in these zones
Airports in Mountain Time
- BOI
Airports in Chile Time
- SCL
Related conversions
Common conversions
- What is 9:00 am Boise in Santiago?
- 9:00 am Boise is 11:00 am Santiago.
- What is 12:00 pm Boise in Santiago?
- 12:00 pm Boise is 2:00 pm Santiago.
- What is 12:30 pm Boise in Santiago?
- 12:30 pm Boise is 2:30 pm Santiago.
- What is 2:00 pm Boise in Santiago?
- 2:00 pm Boise is 4:00 pm Santiago.
- What is 5:00 pm Boise in Santiago?
- 5:00 pm Boise is 7:00 pm Santiago.
- What is 11:30 pm Boise in Santiago?
- 11:30 pm Boise is 1:30 am Santiago, the next day.