The time difference between Porto and New York is 4 hours. When it is 12:00 noon in Porto, it is 08:00 in New York. Porto uses the Europe/Lisbon time zone (UTC+0), while New York uses America/New_York (UTC-4).
There are 4 overlapping business hours between Porto and New York (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:
Use this table to quickly convert any hour from Porto time to New York time. Rows highlighted in green indicate overlapping business hours in both cities.
| Porto | New York | |
|---|---|---|
| 00:00 | 20:00 (-1 day) | Night |
| 01:00 | 21:00 (-1 day) | Night |
| 02:00 | 22:00 (-1 day) | Night |
| 03:00 | 23:00 (-1 day) | Night |
| 04:00 | 00:00 | Night |
| 05:00 | 01:00 | Night |
| 06:00 | 02:00 | |
| 07:00 | 03:00 | |
| 08:00 | 04:00 | |
| 09:00 | 05:00 | |
| 10:00 | 06:00 | |
| 11:00 | 07:00 | |
| 12:00 | 08:00 | |
| 13:00 | 09:00 | Overlap |
| 14:00 | 10:00 | Overlap |
| 15:00 | 11:00 | Overlap |
| 16:00 | 12:00 | Overlap |
| 17:00 | 13:00 | |
| 18:00 | 14:00 | |
| 19:00 | 15:00 | |
| 20:00 | 16:00 | |
| 21:00 | 17:00 | |
| 22:00 | 18:00 | Night |
| 23:00 | 19:00 | Night |
New York is currently observing daylight saving time, while Porto is on standard time. When New York switches back to standard time, the difference between these two cities will shift by 1 hour.
The time difference is 4 hours. New York is 4 hours behind Porto.
Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.
The best window is between 13:00 and 17:00 Porto time, which corresponds to 09:00–13:00 in New York. Both sides fall within normal business hours.
Subtract 4 hours from Porto time to get New York time. Use the hour-by-hour table above for a quick reference.
For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.