Dislikedwell, the start of the day is the previous day's close (hmmmm, you should know this one), the close is what we don't know, but does that matter?Ignored
0500 EST?
Midnight EST?
0000 GMT?
The beginning of the London session- 0800 GMT?
There are people who use Pivot points who swear by each of these.
They each give a different set of pivot points.