Boulder City to Riyadh time converter
Riyadh is 10 hours ahead of Boulder City. When it is 9:00 AM in Boulder City, it is 7:00 PM in Riyadh.
Boulder City PDT
Sunday, October 18, 2026
Riyadh AST
Monday, October 19, 2026
4:16 PM in Boulder City, Sunday, October 18, 2026
Boulder City to Riyadh conversion table
Every hour of today in Boulder City and the matching time in Riyadh. Light rows are typical working hours (9:00–18:00).
| Boulder City | Riyadh |
|---|---|
| 12:00 AM | 10:00 AM |
| 1:00 AM | 11:00 AM |
| 2:00 AM | 12:00 PM |
| 3:00 AM | 1:00 PM |
| 4:00 AM | 2:00 PM |
| 5:00 AM | 3:00 PM |
| 6:00 AM | 4:00 PM |
| 7:00 AM | 5:00 PM |
| 8:00 AM | 6:00 PM |
| 9:00 AM | 7:00 PM |
| 10:00 AM | 8:00 PM |
| 11:00 AM | 9:00 PM |
| 12:00 PM | 10:00 PM |
| 1:00 PM | 11:00 PM |
| 2:00 PM | 12:00 AM+1 day |
| 3:00 PM | 1:00 AM+1 day |
| 4:00 PM | 2:00 AM+1 day |
| 5:00 PM | 3:00 AM+1 day |
| 6:00 PM | 4:00 AM+1 day |
| 7:00 PM | 5:00 AM+1 day |
| 8:00 PM | 6:00 AM+1 day |
| 9:00 PM | 7:00 AM+1 day |
| 10:00 PM | 8:00 AM+1 day |
| 11:00 PM | 9:00 AM+1 day |
Best time to call or meet
Working hours don't overlap fully. The closest fit is 7:00 AM – 8:00 AM in Boulder City (5:00 PM – 6:00 PM in Riyadh): working hours on one side, early or late on the other.
Daylight saving time and the difference
The difference changes during the year because Boulder City and Riyadh switch clocks on different dates:
- Oct 18, 2026 – Nov 1, 2026: +10h
- Nov 1, 2026 – Mar 14, 2027: +11h
- Mar 14, 2027 – Oct 18, 2027: +10h
Distance
Boulder City and Riyadh are 12,996 km (8,075 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Boulder City and Riyadh?
Riyadh is 10 hours ahead of Boulder City.
What time is it in Riyadh when it is 9 AM in Boulder City?
When it is 9:00 AM in Boulder City, it is 7:00 PM in Riyadh.
When is the best time to call Riyadh from Boulder City?
Working hours don't overlap fully. The closest fit is 7:00 AM – 8:00 AM in Boulder City (5:00 PM – 6:00 PM in Riyadh): working hours on one side, early or late on the other.
Does the time difference between Boulder City and Riyadh change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.