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