When it is 12:00 PM in Boulder, it is 4:00 AM the next day in Sydney.
📞There is no overlap during standard 9-to-5 business hours, so a call may need to be early or late in the day for one side.
Boulder is 16 hours behind Sydney.
🕐 Add 16 hours to Boulder time to get Sydney time.
Boulder uses 6 hours behind Universal Time (UTC-6) and Sydney uses 10 hours ahead of Universal Time (UTC+1).
| Boulder Time | Sydney Time | |
|---|---|---|
| 12 AM Boulder Time | ↔ | ☼ 4 PM Sydney Time |
| 1 AM Boulder Time | ↔ | 5 PM Sydney Time |
| 2 AM Boulder Time | ↔ | 6 PM Sydney Time |
| 3 AM Boulder Time | ↔ | 7 PM Sydney Time |
| 4 AM Boulder Time | ↔ | 8 PM Sydney Time |
| ☼ 5 AM Boulder Time | ↔ | 9 PM Sydney Time |
| ☼ 6 AM Boulder Time | ↔ | 10 PM Sydney Time |
| ☼ 7 AM Boulder Time | ↔ | 11 PM Sydney Time |
| ☼ 8 AM Boulder Time | ↔ | 12 AM Sydney Time |
| ☼ 9 AM Boulder Time | ↔ | 1 AM Sydney Time |
| ☼ 10 AM Boulder Time | ↔ | 2 AM Sydney Time |
| ☼ 11 AM Boulder Time | ↔ | 3 AM Sydney Time |
| Boulder Time | Sydney Time | |
|---|---|---|
| ☼ 12 PM Boulder Time | ↔ | 4 AM Sydney Time |
| ☼ 1 PM Boulder Time | ↔ | 5 AM Sydney Time |
| ☼ 2 PM Boulder Time | ↔ | 6 AM Sydney Time |
| ☼ 3 PM Boulder Time | ↔ | ☼ 7 AM Sydney Time |
| ☼ 4 PM Boulder Time | ↔ | ☼ 8 AM Sydney Time |
| ☼ 5 PM Boulder Time | ↔ | ☼ 9 AM Sydney Time |
| ☼ 6 PM Boulder Time | ↔ | ☼ 10 AM Sydney Time |
| ☼ 7 PM Boulder Time | ↔ | ☼ 11 AM Sydney Time |
| ☼ 8 PM Boulder Time | ↔ | ☼ 12 PM Sydney Time |
| 9 PM Boulder Time | ↔ | ☼ 1 PM Sydney Time |
| 10 PM Boulder Time | ↔ | ☼ 2 PM Sydney Time |
| 11 PM Boulder Time | ↔ | ☼ 3 PM Sydney Time |
Boulder is 16 hours behind Sydney.
Boulder is behind Sydney by 16 hours.
It is 1:00 AM the next day in Sydney.