I tried first to go straight to this site , that is what I'm used to do when i need to convert time, but generally the original time comes with the name of the city , ex: 2 pm New York , 8am California , but this time this meeting I'll attend comes with 10 pm pacific and 11 pm eastern  time , so I din't know how to convert using only this information . It is easier to use the site you point if you have the city name.

Thanks anyway,

Madá