Offset
The time difference between Mountain Time and Naples is 8 hours.
Mountain Time (MDT) is behind Naples (CEST).
MDT: UTC-6
CEST: UTC+2
Both zones are currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Mountain Time and Naples don't overlap on the same weekday. Naples is 8 hours ahead of Mountain Time.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–12 PM in Mountain Time (3 PM–8 PM in Naples) — suggest 9:00 AM Mountain Time (5:00 PM Naples).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
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
Italy
- New Year's DayThu, Jan 1
- EpiphanyTue, Jan 6
- Easter SundaySun, Apr 5
- Easter MondayMon, Apr 6
- Liberation DaySat, Apr 25
- International Workers DayFri, May 1
- Republic DayTue, Jun 2
- Assumption DaySat, Aug 15
- St. Francis of Assisi's DaySun, Oct 4
- All Saints DaySun, Nov 1
- Immaculate ConceptionTue, Dec 8
- Christmas DayFri, Dec 25
- St. Stephen's DaySat, Dec 26
About these zones
Mountain Time is also known as MST, or MDT. To call United States, dial +1.
Naples uses Central European Time (CET, or CEST). To call Italy, dial +39.
Naples is approximately 5,700 miles northeast of Mountain Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| MST | Naples | Day |
|---|---|---|
| 12:00 am | 8:00 am | Same day |
| 1:00 am | 9:00 am | Same day |
| 2:00 am | 10:00 am | Same day |
| 3:00 am | 11:00 am | Same day |
| 4:00 am | 12:00 pm | Same day |
| 5:00 am | 1:00 pm | Same day |
| 6:00 am | 2:00 pm | Same day |
| 7:00 am | 3:00 pm | Same day |
| 8:00 am | 4:00 pm | Same day |
| 9:00 am | 5:00 pm | Same day |
| 10:00 am | 6:00 pm | Same day |
| 11:00 am | 7:00 pm | Same day |
| 12:00 pm | 8:00 pm | Same day |
| 1:00 pm | 9:00 pm | Same day |
| 2:00 pm | 10:00 pm | Same day |
| 3:00 pm | 11:00 pm | Same day |
| 4:00 pm | 12:00 am | +1 day |
| 5:00 pm | 1:00 am | +1 day |
| 6:00 pm | 2:00 am | +1 day |
| 7:00 pm | 3:00 am | +1 day |
| 8:00 pm | 4:00 am | +1 day |
| 9:00 pm | 5:00 am | +1 day |
| 10:00 pm | 6:00 am | +1 day |
| 11:00 pm | 7:00 am | +1 day |
Daylight saving time
Both zones observe daylight saving time, but they transition on different dates.
Mountain Time: next transition on Sunday, November 1, 2026.
Naples: next transition on Sunday, October 25, 2026.
For approximately 7 days between transitions, the offset between Mountain Time and Naples differs from its typical value. Recurring meetings during this window will shift by one hour.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:33 AM
- Sunset
- 8:28 PM
- Day length
- 14h 56m
- Sunrise
- 5:32 AM
- Sunset
- 8:35 PM
- Day length
- 15h 3m
Daylight overlap: 7h 2m — 5:33 AM–12:35 PM in Mountain Time (1:33 PM–8:35 PM in Naples). Both locations are in daylight during this window.
Cities in these zones
Cities in Mountain Time
Other cities in Central European 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 Central European Time
- CIA
- FCO
- BGY
- LIN
- MXP
- NAP
- FLR
- TSF
- VCE
Related conversions
Common conversions
- What is 9:00 am MST in Naples?
- 9:00 am MST is 5:00 pm Naples.
- What is 12:00 pm MST in Naples?
- 12:00 pm MST is 8:00 pm Naples.
- What is 12:30 pm MST in Naples?
- 12:30 pm MST is 8:30 pm Naples.
- What is 2:00 pm MST in Naples?
- 2:00 pm MST is 10:00 pm Naples.
- What is 5:00 pm MST in Naples?
- 5:00 pm MST is 1:00 am Naples, the next day.
- What is 11:30 pm MST in Naples?
- 11:30 pm MST is 7:30 am Naples, the next day.