this a great source thank you. Can I add heb dates to my Outlook Mobile app?

The following instructions demonstrate how to subscribe to a Hebcal calendar on Outlook.com (sometimes called “Outlook Web”). Outlook.com calendars are used by Windows 10 & 11, Outlook Mac, and Microsoft email accounts such as Hotmail.com, MSN.com and Live.com.

https://www.hebcal.com/home/4400/outlook-web-jewish-holidays