var chart = c3.generate({
data: {
x: 'date',
columns: [
['date', '2014-01-01', '2014-01-10', '2014-01-20', '2014-01-30', '2014-02-01'],
['sample', 30, 200, 100, 400, 150, 250]
]
},
axis: {
x: {
type: 'timeseries'
}
},
regions: [
{start: '2014-01-05', end: '2014-01-10'},
{start: new Date('2014/01/15'), end: new Date('20 Jan 2014')},
{start: 1390575600000, end: 1391007600000}
]
});