Observatory log
Dubai and Boulder, compared
- 01Difference now
Boulder is 10 hours behind Dubai.
Dubai: UTC+4 (UTC+4) · Boulder: MDT (UTC−6)
Next changeFrom 1 November 2026: Boulder is 11 hours behind Dubai.
- 02Through 2026–2027
- 1 January 2026 – 8 March 2026−11 h
- 8 March 2026 – 1 November 2026−10 h
- 1 November 2026 – 14 March 2027−11 h
- 14 March 2027 – 7 November 2027−10 h
- 7 November 2027 – 31 December 2027−11 h
Difference of Boulder from Dubai. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
Their working days never overlap.
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
19:00–22:00 in Dubai = 09:00–12:00 in Boulder
No shared office hours: this is early or late for one side (Mon–Fri).
Also possible: Mon–Fri: 16:00–17:00 in Dubai = 06:00–07:00 in Boulder · 1 h.
- 05Weekend
Dubai: Saturday and Sunday
Boulder: Saturday and Sunday
24 hours
A day in Dubai, in Boulder
| Dubai | Boulder | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 14:00Yesterday | |
| 01:00 | 15:00Yesterday | |
| 02:00 | 16:00Yesterday | |
| 03:00 | 17:00Yesterday | |
| 04:00 | 18:00Yesterday | |
| 05:00 | 19:00Yesterday | |
| 06:00 | 20:00Yesterday | |
| 07:00 | 21:00Yesterday | |
| 08:00 | 22:00Yesterday | |
| 09:00 | 23:00Yesterday | |
| 10:00 | 00:00 | |
| 11:00 | 01:00 | |
| 12:00 | 02:00 | |
| 13:00 | 03:00 | |
| 14:00 | 04:00 | |
| 15:00 | 05:00 | |
| 16:00 | 06:00 | |
| 17:00 | 07:00 | |
| 18:00 | 08:00 | |
| 19:00 | 09:00 | |
| 20:00 | 10:00 | |
| 21:00 | 11:00 | |
| 22:00 | 12:00 | |
| 23:00 | 13:00 |
Working hoursEarly or eveningNightWeekend
Plan a meeting: Dubai and Boulder
More time differences with Dubai
Questions
Asked about Dubai and Boulder
What is the time difference between Dubai and Boulder?
Boulder is 10 hours behind Dubai. This holds until 1 November 2026; then Boulder is 11 hours behind Dubai.
What is the best time for a call between Dubai and Boulder?
No shared office hours. The least awkward windows, early or late for one side: Mon–Fri: 19:00–22:00 in Dubai = 09:00–12:00 in Boulder · 3 h; Mon–Fri: 16:00–17:00 in Dubai = 06:00–07:00 in Boulder · 1 h.
When does the time difference between Dubai and Boulder change?
In the next 12 months it changes on: 1 November 2026 (−11 h); 14 March 2027 (−10 h).