Offset
The time difference between Mountain Time and Santa Cruz de la Sierra is 2 hours.
Mountain Time (MDT) is behind Santa Cruz de la Sierra (GMT-4).
MDT: UTC-6
GMT-4: UTC-4
Mountain Time is currently observing daylight saving time; Santa Cruz de la Sierra is not.
When to schedule
Business-hours overlap: 9 AM–3 PM in Mountain Time (11 AM–5 PM in Santa Cruz de la Sierra).
Both teams are in working hours during this window on weekdays.
Suggested time: 12:00 PM Mountain Time (2:00 PM Santa Cruz de la Sierra).
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
Bolivia
- New Year's DayThu, Jan 1
- Feast of the Virgin of CandelariaMon, Feb 2
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- Corpus ChristiThu, Jun 4
- Andean New YearSun, Jun 21
- Agrarian Reform DaySun, Aug 2
- Independence DayThu, Aug 6
- All Saints' DayMon, Nov 2
- Christmas DayFri, Dec 25
About these zones
Mountain Time is also known as MST, or MDT. To call United States, dial +1.
Santa Cruz de la Sierra uses Bolivia Time. To call Bolivia, dial +591.
Santa Cruz de la Sierra is approximately 4,800 miles southeast of Mountain Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| MST | Santa Cruz de la Sierra | 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
Mountain Time observes daylight saving time; Santa Cruz de la Sierra 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
- 5:51 AM
- Sunset
- 8:23 PM
- Day length
- 14h 33m
- Sunrise
- 6:43 AM
- Sunset
- 5:56 PM
- Day length
- 11h 13m
Daylight overlap: 10h 6m — 5:51 AM–3:56 PM in Mountain Time (7:51 AM–5:56 PM in Santa Cruz de la Sierra). Both locations are in daylight during this window.
Cities in these zones
Cities in Mountain Time
Other cities in Bolivia 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 Bolivia Time
- LPB
- SRZ
- VVI
Related conversions
Common conversions
- What is 9:00 am MST in Santa Cruz de la Sierra?
- 9:00 am MST is 11:00 am Santa Cruz de la Sierra.
- What is 12:00 pm MST in Santa Cruz de la Sierra?
- 12:00 pm MST is 2:00 pm Santa Cruz de la Sierra.
- What is 12:30 pm MST in Santa Cruz de la Sierra?
- 12:30 pm MST is 2:30 pm Santa Cruz de la Sierra.
- What is 2:00 pm MST in Santa Cruz de la Sierra?
- 2:00 pm MST is 4:00 pm Santa Cruz de la Sierra.
- What is 5:00 pm MST in Santa Cruz de la Sierra?
- 5:00 pm MST is 7:00 pm Santa Cruz de la Sierra.
- What is 11:30 pm MST in Santa Cruz de la Sierra?
- 11:30 pm MST is 1:30 am Santa Cruz de la Sierra, the next day.