ON A JOURNEY FROM NEWYORK TO LAGOS, TO CORRECT STANDARD TIME YOU MUST PUT THE HAND OF YOUR WATCH ......................
Do you mean to adjust for the difference in time zones?
http://www.bing.com/images/search?q=world+time+zone+map&qpvt=world+time+zone+map&qpvt=world+time+zone+map&qpvt=world+time+zone+map&FORM=IGRE