When it is 12:00 PM in Perth, it is 11:00 PM the previous day in ADT.
📞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 13 hours ahead of ADT.
🕐 Subtract 13 hours from Perth time to get ADT time.
Perth uses 10 hours ahead of Universal Time (UTC+1) and ADT uses 3 hours behind Universal Time (UTC-3).
| Perth Time | ADT Time | |
|---|---|---|
| 12 AM Perth Time | ↔ | 11 AM ADT Time |
| 1 AM Perth Time | ↔ | 12 PM ADT Time |
| 2 AM Perth Time | ↔ | 1 PM ADT Time |
| 3 AM Perth Time | ↔ | 2 PM ADT Time |
| 4 AM Perth Time | ↔ | 3 PM ADT Time |
| 5 AM Perth Time | ↔ | 4 PM ADT Time |
| 6 AM Perth Time | ↔ | 5 PM ADT Time |
| 7 AM Perth Time | ↔ | 6 PM ADT Time |
| 8 AM Perth Time | ↔ | 7 PM ADT Time |
| 9 AM Perth Time | ↔ | 8 PM ADT Time |
| 10 AM Perth Time | ↔ | 9 PM ADT Time |
| 11 AM Perth Time | ↔ | 10 PM ADT Time |
| Perth Time | ADT Time | |
|---|---|---|
| 12 PM Perth Time | ↔ | 11 PM ADT Time |
| 1 PM Perth Time | ↔ | 12 AM ADT Time |
| 2 PM Perth Time | ↔ | 1 AM ADT Time |
| 3 PM Perth Time | ↔ | 2 AM ADT Time |
| 4 PM Perth Time | ↔ | 3 AM ADT Time |
| 5 PM Perth Time | ↔ | 4 AM ADT Time |
| 6 PM Perth Time | ↔ | 5 AM ADT Time |
| 7 PM Perth Time | ↔ | 6 AM ADT Time |
| 8 PM Perth Time | ↔ | 7 AM ADT Time |
| 9 PM Perth Time | ↔ | 8 AM ADT Time |
| 10 PM Perth Time | ↔ | 9 AM ADT Time |
| 11 PM Perth Time | ↔ | 10 AM ADT Time |
Perth is 13 hours ahead of ADT.
Perth is ahead of ADT by 13 hours.
It is 8:00 PM the previous day in ADT.