If your browser supports Javascript, your
computer's clock should be visible at the top of this page.
You can compare it to the Naval Observatory Master Clock by
clicking on your time zone from among the buttons at the
bottom of the page. Occasionally the Nav. Obs. clock comes up
behind your browser screen so, if that occurs, you will have to collapse that
screen using the down arrow or other symbol to reduce screen
size that is often in the upper right hand corner of the screen..