When it is 12:00 PM in Waltham, it is 1:30 AM the next day in Adelaide.
📞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.
Waltham is 13 hours 30 minutes behind Adelaide.
🕐 Add 13 hours 30 minutes to Waltham time to get Adelaide time.
Waltham uses 4 hours behind Universal Time (UTC-4) and Adelaide uses 9 hours 30 minutes ahead of Universal Time (UTC+9).
| Waltham Time | Adelaide Time | |
|---|---|---|
| 12 AM Waltham Time | ↔ | ☼ 1 PM Adelaide Time |
| 1 AM Waltham Time | ↔ | ☼ 2 PM Adelaide Time |
| 2 AM Waltham Time | ↔ | ☼ 3 PM Adelaide Time |
| 3 AM Waltham Time | ↔ | ☼ 4 PM Adelaide Time |
| 4 AM Waltham Time | ↔ | ☼ 5 PM Adelaide Time |
| ☼ 5 AM Waltham Time | ↔ | 6 PM Adelaide Time |
| ☼ 6 AM Waltham Time | ↔ | 7 PM Adelaide Time |
| ☼ 7 AM Waltham Time | ↔ | 8 PM Adelaide Time |
| ☼ 8 AM Waltham Time | ↔ | 9 PM Adelaide Time |
| ☼ 9 AM Waltham Time | ↔ | 10 PM Adelaide Time |
| ☼ 10 AM Waltham Time | ↔ | 11 PM Adelaide Time |
| ☼ 11 AM Waltham Time | ↔ | 12 AM Adelaide Time |
| Waltham Time | Adelaide Time | |
|---|---|---|
| ☼ 12 PM Waltham Time | ↔ | 1 AM Adelaide Time |
| ☼ 1 PM Waltham Time | ↔ | 2 AM Adelaide Time |
| ☼ 2 PM Waltham Time | ↔ | 3 AM Adelaide Time |
| ☼ 3 PM Waltham Time | ↔ | 4 AM Adelaide Time |
| ☼ 4 PM Waltham Time | ↔ | 5 AM Adelaide Time |
| ☼ 5 PM Waltham Time | ↔ | 6 AM Adelaide Time |
| ☼ 6 PM Waltham Time | ↔ | ☼ 7 AM Adelaide Time |
| ☼ 7 PM Waltham Time | ↔ | ☼ 8 AM Adelaide Time |
| ☼ 8 PM Waltham Time | ↔ | ☼ 9 AM Adelaide Time |
| 9 PM Waltham Time | ↔ | ☼ 10 AM Adelaide Time |
| 10 PM Waltham Time | ↔ | ☼ 11 AM Adelaide Time |
| 11 PM Waltham Time | ↔ | ☼ 12 PM Adelaide Time |
Waltham is 13 hours 30 minutes behind Adelaide.
Waltham is behind Adelaide by 13 hours 30 minutes.
It is 10:30 PM in Adelaide.