What time is it in Greenwich England (at 0 longitude) when noon Massena New York?

When it's noon in Massena, New York (which is located at-75.5 longitude), it is 17:00 in Greenwich, England (at 0 longitude).

To calculate the time difference between two locations, you can use the following formula:

Time difference = (Longitude of Location 2 - Longitude of Location 1) x 4 minutes

In this case, the longitude of Greenwich, England is 0, and the longitude of Massena, New York is -75.5. So the time difference is:

Time difference = (-75.5 - 0) x 4 minutes = -302 minutes

Since the time difference is negative, it means that Greenwich, England is 302 minutes behind Massena, New York. To find the time in Greenwich, England when it's noon in Massena, New York, you would need to subtract 302 minutes from 12:00 pm. This gives you a time of 17:00 in Greenwich, England.