Small and nonpolar (hydrophobic) molecules can freely pass through the membrane, but charged ions and large molecules such as proteins and sugars are barred passage. The selective permeability of the cell membrane allows a cell to maintain its internal composition at necessary levels.
This will be between 7AM - 11PM their time, since New York (NY) is 6 hours ahead of Hawaii (HI). If you're available any time, but you want to reach someone in New York at work, you may want to try between 3:00 AM and 11:00 AM your time. This is the best time to reach them from 9AM - 5PM during normal working hours.
Converting PST to EST. This time zone converter lets you visually and very quickly convert PST to EST and vice-versa. Simply mouse over the colored hour-tiles and glance at the hours selected by the column... and done! PST stands for Pacific Standard Time. EST is known as Eastern Standard Time. EST is 3 hours ahead of PST.