I think the Worldmeters data was momentarily wrong, or I misread it. I thought today's new cases were 3 times yesterdays. The correct numbers are --
Today's total as of 4:30 p.m.: 8,149
Yesterday: 4,824
That's a factor of 1.69 not ~3.00
Today's numbers are still increasing. I have noticed that some days they decrease as they are moved to the "yesterday" category. Someone is making corrections to the source data, I suppose.
The data for Italy and France appears only once a day. Some other countries change hour by hour.