No overlap — one side will join outside working hours
MST (Denver)
EET (Athens)
00:00
09:00Working
01:00
10:00Working
02:00
11:00Working
03:00
12:00Working
04:00
13:00Working
05:00
14:00Working
06:00
15:00Working
07:00
16:00Working
08:00
17:00
09:00Working
18:00off
10:00Working
19:00off
11:00Working
20:00off
12:00Working
21:00off
13:00Working
22:00off
14:00Working
23:00off
15:00Working
00:00+1doff
16:00Working
01:00+1doff
17:00
02:00+1d
18:00
03:00+1d
19:00
04:00+1d
20:00
05:00+1d
21:00
06:00+1d
22:00
07:00+1d
23:00
08:00+1d
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between mst and eet?
Mountain Standard Time (mst) is UTC-6 and Eastern European Time (eet) is UTC+3. The difference between them is 9 hours.
Where is mst used?
Mountain Standard Time (mst) is used in USA and surrounding regions. The IANA timezone identifier is America/Denver.
Where is eet used?
Eastern European Time (eet) is used in Greece and surrounding regions. The IANA timezone identifier is Europe/Athens.
How do I convert mst to eet?
Use the interactive converter above. Drag the time slider to any mst time and the eet equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
MST (Denver) is 9 hours behind EET (Athens). When MST (Denver) clocks hit noon, EET (Athens) reads 21:00.
MST (Denver) observes America/Denver and EET (Athens) observes Europe/Athens — a 9 hours gap between them.
Business hours comparison
When MST (Denver) is in standard working hours, EET (Athens) is not — and vice versa. There is no mutual business window between these two locations.
Optimal meeting slots
No business hours overlap exists between MST (Denver) and EET (Athens). Showing the most balanced options with minimal inconvenience for both locations.
07:00 Denver / 16:00 Athens⚡ One side off-hours
⚠️ 2h before working hours in Denver
09:00 Denver / 18:00 Athens⚡ One side off-hours
⚠️ 2h after working hours in Athens
06:00 Denver / 15:00 Athens⚡ One side off-hours
⚠️ 3h before working hours in Denver
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Holiday calendar for both locations
⚡ Both locations have upcoming holidays, check availability before scheduling.
MST (Denver)8 holidays
Jun 19Juneteenth National Independence DaySOON
Jul 3Independence Day
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
EET (Athens)4 holidays
Aug 15Assumption Day
Oct 28Ochi Day
Dec 25Christmas Day
Dec 26St. Stephen's Day
Working across MST (Denver) and EET (Athens)
Teams in MST (Denver) (USA) and EET (Athens) (Greece) deal with a 9-hour gap that pushes their working days apart. Real-time meetings always require someone to stretch outside the standard 9–5.
💡 Best practice for cross-timezone meetings
⚡
07:00–08:00 in MST (Denver) corresponds to 16:00–17:00 in EET (Athens) (2h before working hours in Denver).
⚡
09:00–10:00 in MST (Denver) corresponds to 18:00–19:00 in EET (Athens) (2h after working hours in Athens).
⚡
06:00–07:00 in MST (Denver) corresponds to 15:00–16:00 in EET (Athens) (3h before working hours in Denver).
Since there is no natural overlap, the options above represent the most balanced compromise, minimizing out-of-hours inconvenience for both sides.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any MST (Denver) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
