dataTable.addColumn({type: 'string', id: 'Bidder'});
dataTable.addColumn({type: 'date', id: 'Timestamp'});
dataTable.addColumn({type: 'number', id: 'Bid'});
dataTable.addColumn({type: 'number', id: 'Reserve'});
dataTable.addRows([
['Fred Flintstone', new Date(0,0,0,12,1,30), 15000, 65000],
['Mary Poppins', new Date(0,0,0,12,1,41), 16000, 65000],
['Adam Davies', new Date(0,0,0,12,1,47), 18000, 65000],
['Fred Flintstone', new Date(0,0,0,12,2,02), 20000, 65000],
['Adam Davies', new Date(0,0,0,12,2,10), 23000, 65000],
['Mary Poppins', new Date(0,0,0,12,2,18), 26000, 65000],
['Adam Davies', new Date(0,0,0,12,2,24), 30000, 65000],
['Fred Flintstone', new Date(0,0,0,12,2,27), 33000, 65000],
['Bill Bryson', new Date(0,0,0,12,2,31), 35000, 65000],
['Adam Davies', new Date(0,0,0,12,2,35), 40000, 65000],
['Fred Flintstone', new Date(0,0,0,12,2,41), 45000, 65000],
['Mary Poppins', new Date(0,0,0,12,3,01), 50000, 65000]
]);
Something like this chart created in Excel
thanks