When it is 12:00 PM in Perth, it is 9:00 PM the previous day in Seattle.
📞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.
Perth is 15 hours ahead of Seattle.
🕐 Subtract 15 hours from Perth time to get Seattle time.
Perth uses 8 hours ahead of Universal Time (UTC+8) and Seattle uses 7 hours behind Universal Time (UTC-7).
| Perth Time | Seattle Time | |
|---|---|---|
| 12 AM Perth Time | ↔ | ☼ 9 AM Seattle Time |
| 1 AM Perth Time | ↔ | ☼ 10 AM Seattle Time |
| 2 AM Perth Time | ↔ | ☼ 11 AM Seattle Time |
| 3 AM Perth Time | ↔ | ☼ 12 PM Seattle Time |
| 4 AM Perth Time | ↔ | ☼ 1 PM Seattle Time |
| 5 AM Perth Time | ↔ | ☼ 2 PM Seattle Time |
| 6 AM Perth Time | ↔ | ☼ 3 PM Seattle Time |
| ☼ 7 AM Perth Time | ↔ | ☼ 4 PM Seattle Time |
| ☼ 8 AM Perth Time | ↔ | ☼ 5 PM Seattle Time |
| ☼ 9 AM Perth Time | ↔ | ☼ 6 PM Seattle Time |
| ☼ 10 AM Perth Time | ↔ | ☼ 7 PM Seattle Time |
| ☼ 11 AM Perth Time | ↔ | ☼ 8 PM Seattle Time |
| Perth Time | Seattle Time | |
|---|---|---|
| ☼ 12 PM Perth Time | ↔ | ☼ 9 PM Seattle Time |
| ☼ 1 PM Perth Time | ↔ | 10 PM Seattle Time |
| ☼ 2 PM Perth Time | ↔ | 11 PM Seattle Time |
| ☼ 3 PM Perth Time | ↔ | 12 AM Seattle Time |
| ☼ 4 PM Perth Time | ↔ | 1 AM Seattle Time |
| ☼ 5 PM Perth Time | ↔ | 2 AM Seattle Time |
| 6 PM Perth Time | ↔ | 3 AM Seattle Time |
| 7 PM Perth Time | ↔ | 4 AM Seattle Time |
| 8 PM Perth Time | ↔ | ☼ 5 AM Seattle Time |
| 9 PM Perth Time | ↔ | ☼ 6 AM Seattle Time |
| 10 PM Perth Time | ↔ | ☼ 7 AM Seattle Time |
| 11 PM Perth Time | ↔ | ☼ 8 AM Seattle Time |
Perth is 15 hours ahead of Seattle.
Perth is ahead of Seattle by 15 hours.
It is 6:00 PM the previous day in Seattle.