Offset
The time difference between Tainan and Mountain Time is 14 hours.
Tainan (GMT+8) is ahead of Mountain Time (MDT).
GMT+8: UTC+8
MDT: UTC-6
Mountain Time is currently observing daylight saving time; Tainan is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Tainan and Mountain Time don't overlap on the same weekday. Mountain Time is 14 hours behind Tainan.
Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.
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
About these zones
Tainan uses Taiwan Standard Time. To call Taiwan, dial +886.
Mountain Time is also known as MST, or MDT. To call United States, dial +1.
Mountain Time is approximately 7,200 miles northeast of Tainan.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Tainan | MST | Day |
|---|---|---|
| 12:00 am | 10:00 am | -1 day |
| 1:00 am | 11:00 am | -1 day |
| 2:00 am | 12:00 pm | -1 day |
| 3:00 am | 1:00 pm | -1 day |
| 4:00 am | 2:00 pm | -1 day |
| 5:00 am | 3:00 pm | -1 day |
| 6:00 am | 4:00 pm | -1 day |
| 7:00 am | 5:00 pm | -1 day |
| 8:00 am | 6:00 pm | -1 day |
| 9:00 am | 7:00 pm | -1 day |
| 10:00 am | 8:00 pm | -1 day |
| 11:00 am | 9:00 pm | -1 day |
| 12:00 pm | 10:00 pm | -1 day |
| 1:00 pm | 11:00 pm | -1 day |
| 2:00 pm | 12:00 am | Same day |
| 3:00 pm | 1:00 am | Same day |
| 4:00 pm | 2:00 am | Same day |
| 5:00 pm | 3:00 am | Same day |
| 6:00 pm | 4:00 am | Same day |
| 7:00 pm | 5:00 am | Same day |
| 8:00 pm | 6:00 am | Same day |
| 9:00 pm | 7:00 am | Same day |
| 10:00 pm | 8:00 am | Same day |
| 11:00 pm | 9:00 am | Same day |
Daylight saving time
Mountain Time observes daylight saving time; Tainan 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
- 5:14 AM
- Sunset
- 6:44 PM
- Day length
- 13h 30m
- Sunrise
- 5:33 AM
- Sunset
- 8:26 PM
- Day length
- 14h 53m
Cities in these zones
Other cities in Taiwan Standard Time
Cities in Mountain Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Taiwan Standard Time
- TPE
- TSA
- RMQ
- KHH
- TNN
Airports in Mountain Time
- BJC
- DEN
- OGD
- SLC
Related conversions
Common conversions
- What is 9:00 am Tainan in MST?
- 9:00 am Tainan is 7:00 pm MST, the previous day.
- What is 12:00 pm Tainan in MST?
- 12:00 pm Tainan is 10:00 pm MST, the previous day.
- What is 12:30 pm Tainan in MST?
- 12:30 pm Tainan is 10:30 pm MST, the previous day.
- What is 2:00 pm Tainan in MST?
- 2:00 pm Tainan is 12:00 am MST.
- What is 5:00 pm Tainan in MST?
- 5:00 pm Tainan is 3:00 am MST.
- What is 11:30 pm Tainan in MST?
- 11:30 pm Tainan is 9:30 am MST.