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Hong Kong Time to US Mountain Time

Convert times between Hong Kong Time (HKT, UTC+8:00) and US Mountain Time (MST, UTC-7:00). US Mountain Time is 15 hours behind Hong Kong Time in standard time. During daylight saving time this difference changes to 14 hours.

UTC+8:00UTC-7:00 / -6:00
Live timezone converter

UTC Offset Reference

TimezoneAbbreviationStandard offsetDST offsetCountry
Hong Kong TimeHKTUTC+8:00Hong Kong
US Mountain TimeMST / MDTUTC-7:00UTC-6:00United States

* DST offset applies during summer months. Exact transition dates vary by year.

Standard Time Conversion (HKTMST)

Hong Kong TimeUS Mountain Time
12:00 AM HKT9:00 AM (prev day) MST
6:00 AM HKT3:00 PM (prev day) MST
9:00 AM HKT6:00 PM (prev day) MST
12:00 PM HKT9:00 PM (prev day) MST
3:00 PM HKT12:00 AM MST
6:00 PM HKT3:00 AM MST
9:00 PM HKT6:00 AM MST

Summer (DST) Conversion (HKTMDT)

Hong Kong Time (summer)US Mountain Time (summer)
12:00 AM HKT10:00 AM (prev day) MDT
6:00 AM HKT4:00 PM (prev day) MDT
9:00 AM HKT7:00 PM (prev day) MDT
12:00 PM HKT10:00 PM (prev day) MDT
3:00 PM HKT1:00 AM MDT
6:00 PM HKT4:00 AM MDT
9:00 PM HKT7:00 AM MDT

Daylight Saving Time (DST) Notes

  • US Mountain Time observes DST. Clocks advance 1 hour to MDT (UTC-6:00) roughly from month 3 to 11.
  • The offset difference shifts between 15h (standard) and 14h (DST season). Always verify the current offset using the live converter below.

Frequently Asked Questions

How do I convert HKT to MST?
Add (-15) hours to the HKT time to get MST. For example, 9:00 AM HKT = 6:00 PM MST.
What is the current UTC offset for Hong Kong Time?
Hong Kong Time is always UTC+8:00 (HKT) — it does not observe DST.
Is US Mountain Time ahead or behind Hong Kong Time?
US Mountain Time is 15 hours behind Hong Kong Time in standard time.
When is a good time to schedule a meeting between HKT and MST?
Due to the 15-hour difference, business-hours overlap may be limited. Use the live timezone converter to find a mutually convenient time.

Need the exact current time?

Use the live ToolsHub timezone converter to see current times, DST status, and schedule across time zones.

Open live converter →