Question about Yom Tov #240

Hi,

I try to get Yom Tov start to end time but i don't how to get it.

For now i 'm able to know if current date is yomTov with

new JewishCalendar(lCalendar).isYomTov();

For example Rosh Hashana 2024 in Paris, i need have start time wednesday 2 october 19h09 and end time friday 4 octobre 20h10

Thanks in advance