This is an important feature that I hope Syncfusion takes seriously and implements. Rendering intraday stock charts makes no sense when there is always a massive gap between one day's market close and the next day's market open.
We suggest you to render stock chart with datetime axis type itself. Since, datetime value type displays date time values in linear interval, when providing the empty data for few points in chart series datasource, then date labels will be displayed in linear order.
Please check with the below online demo link.
Kindly revert us if you have any concerns.